Friends, investigators seek answers in killing of O.C. couple

They met in college, two highly regarded basketball players who seemed to have the same winning touch on the court and off.

After blazing through high school and college with her outside shot, Monica Quan became the assistant women's basketball coach at Cal State Fullerton. Keith Lawrence, whose highlight shots are still there on his college website, became a campus officer at USC.

Now police in Irvine are scrambling for an explanation — and friends are looking for a way to express their shock — after Quan and Lawrence were found shot to death in their parked car on the top floor of a parking structure in an upscale, high-security condominium complex near UC Irvine.

The two had just announced their engagement and had recently moved into a condominium complex near Concordia University, where they played basketball and had gone on to earn their degrees.

Late Sunday, after a passerby noticed two people in the parked car, police said they found Lawrence slumped in the driver's side of his white Kia. Quan was next to him, also dead. The couple were shot multiple times, and authorities said they have tentatively ruled out the possibility of it being a murder-suicide or motivated by robbery. Nothing in the car, police said, seemed to be disturbed.

The couple's friends and family said they were shaken by the violent deaths of two people who seemed to have so much to offer.

Quan was a 2002 graduate of Walnut High School in the San Gabriel Valley, where she set school records for the most three-pointers in a season and a game. She played at Long Beach State and at Concordia, where she graduated in 2007. She went on to earn a master's degree before becoming the assistant coach at Fullerton.

Quan's father was the first Chinese American captain in the LAPD, and went on to become police chief at Cal Poly Pomona.

Quan was known for pulling students aside to offer encouragement, said Megan Richardson, a former player. Marcia Foster, the head basketball coach at Cal State Fullerton, described her assistant as a special person — "bright, passionate and empowering," she said.

Quan shared a love of basketball with her fiancee, Lawrence, whom she met at Concordia.

He too had been a standout basketball player, starting at Moorpark High, where he played point guard and shooting guard, said Tim Bednar, who coached Lawrence.

Bednar said that Lawrence, who came from a family of athletes, was talented, yet quiet and humble. After Lawrence graduated in 2003, he continued to participate in summer youth camps

When he returned for the camps, Bednar said, he was known as the "best basketball player that ever came through" the school.

"He was awesome with the kids," Bednar said. "They all wanted to be around Keith Lawrence."

Bednar heard from Lawrence when he needed a recommendation to become a police officer after graduating from the Ventura County Sheriff's Academy. In August, he was hired by USC's public safety department.

John Thomas, the executive director and chief of the department, said that Lawrence was an "honorable, compassionate and professional" member of the community.

"We are a better department and the USC campus community is a safer place as a result of his service," Thomas said in a statement.

On Monday night, Quan's friends gathered outside Walnut High School. One clutched a heart-shaped balloon, another carried a collage of her basketball playing days. Still another held a basketball.

Lawrence's friends and family put up a Facebook page. "RIP Keith Lawrence, you will be missed," it said simply. Within hours, 840 had left comments or indicated they "liked" it. Concordia put up a link to Lawrence's game-winning shot that carried the school into a post-season tournament.

Michelle Thibeault, 27, said in a Facebook message that she had known Quan for more than a decade. The two were on the same athletic teams and went to junior high and high school together. "Monica was loved by everyone," she said.

During a somber gathering at the Cal State Fullerton gymnasium Monday, Foster read a brief statement from Quan's brother Ryan.

"We just shared a moment of incredible joy on her recent engagement," he wrote, and then added: "A bright light was just put out."

nicole.santacruz@latimes.com

kate.mather@latimes.com

lauren.williams@latimes.com

Times staff writer John Canalis contributed to this report.

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Blind, Fuzzy Moles Smell in Stereo

Tiny-eared and blind, common moles search for tasty meals – like crushed-up earthworms – with their noses. Now a study suggests that these unconventionally adorable critters find their food by smelling in stereo, by detecting small differences in the strength of an odor between the two nostrils.

The study “shows quite directly that stereo olfaction helps with finding food,” said Upinder Bhalla, a neurobiologist at Bangalore’s National Centre for Biological Sciences. Bhalla has studied stereo smelling in rats, but was not a part of the mole team. “It shows how there is a greater reliance on the stereo cues as the animal gets closer to the odor source.”

Stereo sensing is not an unfamiliar capability among mammals. Vision and hearing both work this way, with input from two eyes producing depth perception, and separated ears localizing sound. But for years, the question of whether mammals could smell in stereo has generated controversy. Studies have suggested that both rats and humans could do this, but not everyone believes it.

The new report, published today in Nature Communications, aims to add the common mole (Scalopus aquaticus) to the roster of stereo-sniffers. To test these subterranean furballs, Kenneth Catania, a neurobiologist at Vanderbilt University, constructed a chamber containing 15 food wells arrayed in a semicircle.

Moles placed in the chamber had to follow their noses to a chunk of earthworm randomly hidden in one of the 15 wells. Most sniffed a few times and went directly to retrieve their yummy treasure.

But when one nostril was plugged, a different pattern emerged. Temporarily blocking the left nostril with plastic tubing sent moles veering off to the right. When the right nostril was plugged, the moles favored initial forays to the left. When Catania inserted tubes that crossed the odor cues between left and right, the moles were completely flummoxed. They often wandered around, even missing the wriggling worm completely. A different testing chamber — designed to simulate an underground tunnel — produced similar results.

Catania acknowledges that the findings are unexpected given the tiny distance between a mole’s nostrils. Even so, he argues that the creatures smell in stereo.

Bhalla concurs. “The methods are very sound and you just have to watch the behavior of the mole in the attached movies to see how the stereo olfaction works, and how switching the direction of sampling — using the little tubes in the nostrils — confuses the mole,” he said.

Video: Kenneth Catania

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DealBook: $24 Billion Buyout for Dell, Biggest Since 2007

9:32 a.m. | Updated

Dell announced on Tuesday that it had agreed to go private in a $24.4 billion deal led by its founder and the investment firm Silver Lake, in the biggest leveraged buyout since the financial crisis.

Under the terms of the deal, the buyers’ consortium, which also includes Microsoft, will pay $13.65 a share in cash. That is roughly 25 percent above where Dell’s stock traded before word emerged of the negotiations of its sale.

Michael S. Dell will contribute his stake of roughly 14 percent toward the transaction, and will contribute additional cash through his private investment firm, MSD Capital. Silver Lake is expected to contribute about $1 billion in cash, while Microsoft will loan an additional $2 billion.

Dell’s board is said to have met on Monday night to vote on the deal. In its statement, the company said Mr. Dell recused himself from any discussions about a transaction and did not vote.

As a newly private company – now more firmly under the control of Mr. Dell – the computer maker will seek to revive itself after years of decline. The takeover represents Mr. Dell’s most drastic effort yet to turn around the company he founded in a college dormitory room in 1984 and expanded into one of the world’s biggest sellers of personal computers.

But the advent of new competition, first from other PC manufacturers and then smartphones and the iPad, severely eroded Dell’s business. Such is the concern about the company’s future that Microsoft agreed to lend some of its considerable financial muscle to shore up one of its most important business partners.

“I believe this transaction will open an exciting new chapter for Dell, our customers and team members,” Mr. Dell said in a statement. “Dell has made solid progress executing this strategy over the past four years, but we recognize that it will still take more time, investment and patience, and I believe our efforts will be better supported by partnering with Silver Lake in our shared vision.”

Still, analysts have expressed concern that even a move away from the unyielding scrutiny of the public markets will not let Mr. Dell accomplish what years of previous turnaround efforts have failed to achieve.

Nevertheless, the transaction represents a watershed moment for the private equity industry, reaching heights unseen over the past five years. It is the biggest leveraged buyout since the Blackstone Group‘s $26 billion takeover of Hilton Hotels in the summer of 2007, and it is supported by more than $15 billion of debt financing raised by no fewer than four banks.

“Michael Dell is a true visionary and one of the pre-eminent leaders of the global technology industry,” Egon Durban, a managing partner at Silver Lake, said in a statement. “Silver Lake is looking forward to partnering with him, the talented management team at Dell and the investor group to innovate, invest in long-term growth initiatives and accelerate the company’s transformation strategy to become an integrated and diversified global I.T. solutions provider.”

Mr. Dell first approached the board about taking the company private in August. That prompted the board to form a special committee, with JPMorgan Chase and the law firm Debevoise & Plimpton as advisers. It was charged with considering alternatives to a management buyout, including other deals or borrowing money to pay out a special dividend.

To help ward off accusations of self-dealing by Mr. Dell, the special committee has hired an independent investment bank, Evercore Partners, specifically to oversee a 45-day “go shop” period in which the company will solicit other potential buyers.

“The special committee and its advisers conducted a disciplined and independent process intended to ensure the best outcome for shareholders,” Alex J. Mandl, the head of the Dell independent committee, said in a statement. “Importantly, the go-shop process provides a real opportunity to determine if there are alternatives superior to the present offer from Mr. Dell and Silver Lake.”

Dell itself was advised by Goldman Sachs and the law firm Hogan Lovells, while Mr. Dell retained Wachtell, Lipton, Rosen & Katz as legal counsel. Silver Lake was advised by Bank of America Merrill Lynch, Barclays, Credit Suisse, RBC Capital Markets and the law firm Simpson Thacher & Bartlett.

On Tuesday, Mr. Dell sent a memo to company employees about the deal. Here is a copy of the memo:

Today, we announced a definitive agreement for me and global technology investment firm Silver Lake to acquire Dell and take it private.

This transaction is an exciting new chapter for Dell, our team and our customers. We can immediately deliver value to stockholders, while continuing to execute our long-term growth strategy and focus on helping customers achieve their goals.

Together, we have built an incredible business that generates nearly $60 billion in annual revenue. We deliver enormous customer value through end-to-end solutions that are scalable, secure and easy to manage, and Enterprise Solutions and Services now account for 50 percent of our gross margins.

Dell’s transformation is well underway, but we recognize it will still take more time, investment and patience. I believe that we are better served with partners who will provide long-term support to help Dell innovate and accelerate the company’s transformation strategy. We’ll have the flexibility to continue organic and inorganic investment, and grow our business for the long term.

I am particularly pleased to be in partnership with Silver Lake, a world-class investment firm with an outstanding reputation and significant experience in the technology sector. They know all the technology business models, understand the value chain and have an extremely strong global network of contacts. I am also glad that Microsoft is part of the transaction, further building on a nearly 30-year relationship.

I am honored to continue serving as chairman and CEO, and I look forward to working with all of you, including our current senior leadership team, to accelerate our efforts. There is much more we can accomplish together. I am committed to this journey and I am grateful for your dedication and support. Please, stay focused on delivering results for our customers and our company.

There is still considerable work to be done, and undoubtedly both challenges and triumphs lie ahead, but as always, we are making the right decisions to position Dell, our team and our customers for long-term success.

Michael

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Suspected child molester left L.A. archdiocese for L.A. schools

A former priest and suspected child molester left employment with the Los Angeles archdiocese to work for the L.A. Unified School District, officials confirmed Sunday.

The former clergyman, Joseph Pina, did not work with children in his school district job, L.A. schools Supt. John Deasy said. He added that, as a result of the disclosures, Pina would no longer be employed by the nation's second-largest school system.

Over the weekend, Deasy was unable to pull together Pina's full employment history, but said the district already was looking into the matter of Pina's hiring.

"I find it troubling," he said of the disclosures about Pina. "And I also want to understand what knowledge that we had of any background problems when hiring him, and I don't yet know that."

L.A. Unified itself has come under fire in the last year for its handling of employees accused of sexual misconduct.

Pina, 66, was laid off from his full-time district job last year, but returned to work episodically to organize events. One event he may have helped organize was a ribbon-cutting Saturday for a new education facility. School district officials over the weekend, however, could not confirm that. Pina did not attend the event, and the district could not confirm payment for any help he may have provided.

Pina's name emerged in documents released by the archdiocese to comply with a court order. His case was one of many in which church officials failed to take action to protect child victims and in which first consideration was given to helping the offending priests rather than their victims, according to the documentation.

A just-released, internal 1993 psychological evaluation states that Pina "remains a serious risk for acting out." The evaluation recounts how Pina was attracted to a victim, an eighth-grade girl, when he saw her in a costume.

"She dressed as Snow White ... I had a crush on Snow White, so I started to open myself up to her," he told the psychologist. "I felt like I fell in love with her. I got sexually involved with her, but never intercourse. She was about 17 when we got involved sexually, and it continued until she was about 19."

In a report sent to a top Mahony aide, the psychologist expressed concern the abuse was never reported to authorities.

Pina's evaluation also includes a recommendation "to take appropriate measures and precautions to insure that he is not in a setting where he can victimize others." Pina continued to work as a pastor as late as March 1998.

School district officials could not verify Pina's hiring date over the weekend, but he took a job with L.A. Unified as the school system was carrying out the nation's largest school construction program. His job involved community outreach, building support for school projects, while also finding out communities' concerns and trying to address them, officials said. Such work was crucial to the program, because even though communities wanted new schools, their locations and other elements could prove controversial. Such projects frequently involved tearing down homes or businesses, environmental cleanups, and the blocking of streets and other disruptions.

"His duties were to rally community support and elicit community comments regarding schools in a neighborhood," district spokesman Tom Waldman said.

Pina's work did bring him into contact with families, frequently at public meetings organized to hear and address their concerns.

Projects that Pina worked on included a new elementary school in Porter Ranch and a high school serving the west San Fernando Valley, Waldman said. The high school, in particular, generated substantial public debate as a district team and a local charter school competed aggressively for control of the site.

The $19.5-billion building program is winding down, and, as a result, many jobs attached to it have come to an end. Pina's was among them.

The dedication he may have helped organize Saturday was for the Richard N. Slawson Southeast Occupational Center in Bell. Participants told KCET-TV, which first reported Pina's school employment, that he had assisted with community outreach on that project. The adult education and career technical education facility has 29 classrooms as well as health-career labs and child care for students. The school opened in August 2012.

Pina "was slated for some additional temporary work when the issue came to our attention last week and that work was canceled," Deasy said.

It may have been Pina who first alerted district officials that his name appeared in disclosed documents, Deasy said. Pina called a senior administrator in the facilities division. So far, no untoward issues have emerged regarding Pina's work for L.A. Unified.

howard.blume@latimes.com

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Palm-Sized Nano-Copter Is the Afghanistan War's Latest Spy Drone

British troops in Afghanistan are flying a drone that’s shrunk down to its essentials: a micro-machine that spies, built for a solitary user.

This is the Black Hornet. Its Norwegian manufacturer, Prox Dynamics, bills it as the world’s smallest military-grade spy drone, with a weight of 16 grams and a length of 4 inches. Propelled by two helicopter blades, the Black Hornet carries little more than a steerable camera that records still and video imagery. (That is: It’s unarmed.) Now British soldiers have brought it to Afghanistan, as it fits in the palms of their hands. It’s supposed to be a drone for an Army of One.

“We use it to look for insurgent firing points and check out exposed areas of the ground before crossing, which is a real asset,” Sgt. Christopher Petherbridge of the Brigade Reconnaissance Force told the British Ministry of Defence for a Monday announcement.

The fruit of a contract initially worth $4 million that the Ministry of Defence inked in 2011, the Black Hornet is a major step in the recent trend of miniaturizing drones. The U.S. has its own shrunken spy drones: The Raven can be launched by hand; the collapsible Switchblade fits in a rucksack; and on deck is the insect-inspired miniatures at the Air Force’s “Micro-Aviary.” But it’s currently got nothing as petite as the Black Hornet — although the Ministry of Defence is confident the nano-copter is rugged enough to withstand Afghanistan’s harsh conditions.

What’s perhaps more significant than the Black Hornet’s size is its personalized application. Prox designed it to be a one-man intelligence, surveillance and reconnaissance package. The video imagery captured by a Predator, by contrast, has to supply a lot of people (even if only a handful of airmen operate its ground control station). There aren’t that many Predators, and getting clearance to fly each one requires going up the chain of command. The smaller Raven pushed that spy capability down to company level.

But the Black Hornet is designed to be the robotic, remote-controlled eyes of a single soldier. Its imagery is transmitted down to a personal device that looks kind of like a Game Boy. A handheld mouse-like device steers it. While it’s way too early to say how much value it actually adds in wartime, the Black Hornet hints at a future where recon soldiers and marines get kitted with their own cheap spy drones, the surveillance equivalent of the smartphone.

The U.S. military is far away from that future, especially as budget cuts set in and the ground wars wrap up. But the Army, at least, has been all about pushing data down to an individual soldier on patrol through her own handheld smart device. It might be interested in playing with its British counterpart’s latest tiny drone.

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Following Super Bowl, Beyonce announces world tour

NEW YORK (AP) — Beyonce was just warming up at the Super Bowl: The singer has announced a world tour.

“The Mrs. Carter Show World Tour” will kick off April 15 in Belgrade, Serbia. The European leg of the tour will wrap up May 29 in Stockholm, Sweden.

The tour’s North American stint starts June 28 in Los Angeles and ends Aug. 3 in Brooklyn, N.Y., at the Barclays Center.

It was also announced Monday that a second wave of the tour is planned for Latin America, Australia and Asia later this year.

Beyonce was the halftime performer at Sunday night’s Super Bowl, where the Baltimore Ravens defeated the San Francisco 49ers. She performed a 13-minute set that included hits “Crazy in Love,” ”Single Ladies (Put a Ring on It)” and a Destiny’s Child reunion.

___

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Recipes for Health: Quick One-Dish Meals, Some Cooking Required — Recipes for Health

Andrew Scrivani for The New York Times

This week, in response to readers’ requests on the Recipes for Health Facebook page, I focused on quick one-dish dinners. You may have a different opinion than I do about what constitutes a quick meal. There are quick meals that involve little or no cooking – paninis and sandwiches, uncomplicated omelets, scrambled eggs, and meals that combine prepared items with foods that you cook -- but I chose to focus on dishes that are made from scratch. I bought a cabbage and a generous bunch of kale at the farmers’ market, some sliced mushrooms and bagged baby spinach at Trader Joe’s, and used them in conjunction with items I had on hand in the pantry and refrigerator.

I decided to use the same rule of thumb that a close French friend uses. She refuses to spend more than a half hour on prep but always turns out spectacular dinners and lunches. My goal was to make one-dish meals that would put us at the table no more than 45 minutes after I started cooking (the soup this week went over by 5 or 10 minutes but I left it in because it is so good). For each recipe test I set the timer for 30 minutes, then let it count up once it went off. All of the meals are vegetarian and the only prepared foods I used were canned beans.

I do believe that it is healthy – and enjoyable -- to take time to prepare meals for the family (or just for yourself), even when you are juggling one child’s afterschool soccer practice and homework with another child’s dance recitals and homework. Sometimes it is hard to find that half hour, but everybody benefits when you do.

Soft Black Bean Tacos With Salsa and Cabbage

Canned black beans and lots of cabbage combine in a quick, utterly satisfying one-dish taco dinner. They can be served open-faced or folded over.

1 tablespoon canola or grape seed oil

1 teaspoon medium-hot chili powder (more to taste)

1 teaspoon ground lightly toasted cumin seeds (more to taste)

2 cans black beans, with liquid

Salt to taste

8 corn tortillas

1 cup fresh or bottled salsa*

3 ounces either queso fresco, feta, or sharp cheddar, grated or crumbled

2 cups shredded cabbage

*Make fresh salsa with 2 or 3 chopped roma tomatoes, 1 or 2 jalapeños or serrano chiles, a little chopped onion or shallot if desired, salt, a squeeze of lime juice, and chopped fresh cilantro

1. Heat the oil in a large, heavy skillet over medium-high heat and add the chili powder and ground cumin. Allow the spices to sizzle for about half a minute, until very fragrant, and stir in the black beans and 1/2 cup water. Cook, stirring and mashing the beans with the back of your spoon, for 5 to 10 minutes, until thick and fragrant. Be careful that you don’t let the beans dry out too much. If they do, add a little more water. Remove from the heat.

2. Heat the tortillas, two or three at a time, in a dry skillet over medium-high heat, or in a microwave. Top with the black beans, salsa, cheese and cabbage. Fold the filled tortillas over if desired and serve. Alternatively, one at a time, place a tortilla on a plate, top with the beans and cheese and heat through for 30 seconds to a minute in a microwave. Then top with salsa and a generous handful of cabbage, and serve.

Yield: Serves 4

Advance preparation: The refried black beans will keep for three days in the refrigerator. You will have to moisten and thin them out with water when you reheat them.

Nutritional information per serving: 398 calories; 11 grams fat; 3 grams saturated fat; 3 grams polyunsaturated fat; 4 grams monounsaturated fat; 15 milligrams cholesterol; 56 grams carbohydrates; 13 gram dietary fiber; 887 milligrams sodium (does not include salt to taste); 17 grams protein

Martha Rose Shulman is the author of “The Very Best of Recipes for Health.”

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Bucks Blog: The Question You Should Be Asking About the Stock Market

Carl Richards is a financial planner in Park City, Utah, and is the director of investor education at the BAM Alliance. His book, “The Behavior Gap,” was published last year. His sketches are archived on the Bucks blog.

With the stock market up more than 100 percent from those scary days in early 2009 and up 16 percent in 2012 alone, we’re now hearing plenty about how small investors are getting back into the market. Andrew Wilkinson, the chief economic strategist at Miller Tabak Associates, referred to it as a “a real sea change in investor outlook.”

It seems we’re in danger of repeating the same old cycle of swearing off stocks forever during scary markets, missing a huge rally and then deciding it’s time to buy when stocks are high again. On the flip side, I’ve had a number of conversations with Main Street investors who are asking if now is the time to sell because the Dow Jones Industrial Average is hovering near 14,000 and the S&P 500 stock index is around 1,500 again.

So which one is it? Should everyday investors be buying or selling?

Do you see the problem here?

If we’re investing based on what the market has done, it’s a recipe for disaster. Recent market performance tells us almost nothing useful about what the market will do in the near future. Logically it seems like it should, but a quick review of the market’s performance during the last six years should be evidence enough to convince us that it doesn’t.

Remember how you felt in March, 2009? I bet you didn’t feel like investing, and you weren’t alone. Almost no one did. It was a scary time. But it turns out that it would have been a brilliant time to invest. Again, not because of what the market had done, but what it was about to do.

But there was no way to know that in March 2009.

Did anyone expect (or feel) like 2012 was going to turn into a 16 percent year? In fact, almost all the unfortunate souls that make their living predicting the markets got 2012 wrong.

Here’s the thing we need to remember: we have no idea if now is the time to be buying or selling. But the good news is that it’s not even the question we should be asking. Instead we should be asking, “How can we avoid making the big behavioral mistake of selling low and buying high (again!) in the future?”

Instead of worrying about getting in or out of the market at the right time, take that time to focus on crafting a portfolio based on your goals. Start by taking out a piece of paper and writing a personal investment policy statement that addresses the following:

1. Why are you investing this money in the first place? What are your goals?
2. How much do you need in cash, bonds and stocks to give you the best chance of meeting those goals while taking the least amount of risk?
3. What actual investments will you buy to populate that plan and why? Make sure you address issues like diversification and expenses.
4. How often will you revisit this plan to make sure you’re doing what you said you would do and to make changes to your investments to get them back in line with what you said in number 2?

A personal investment policy statement can be one of the most important guardrails against the emotional investment decisions that we all regret in hindsight. So, when you get worried about the markets and are tempted to sell everything you own that has anything to do with stocks, go back to that piece of paper. If your goals haven’t changed, forget about it.

And when you get excited about that initial public offering that your brother-in-law says he can “get you in on,” pull out that piece of paper. If your goals haven’t changed, forget about it.

When your neighbors are all wrapped up in how the latest apocalypse du jour is going to ruin everyone’s retirement, pull out that piece of paper. If your goals haven’t changed, forget about it.

I know this might not work all the time. In fact, it might not work at all when we’re scared and dead set on getting out. But my hope is that having something we wrote when we weren’t scared will give us a little time to pause and ask a few questions before we do something that might end up being a mistake.

As a result, maybe, just maybe, we can shift the focus away from whether now is the right time to buy or sell and place it squarely on whether that decision fits into our own, personal investment plans.

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L.A. County removing metal detectors from some hospital facilities

It was typically chaotic in the emergency room at Los Angeles County/USC Medical Center that February day in 1993. Richard May was treating patients in the triage area when a disgruntled man started ranting about the long wait. Then, without warning, the man pulled a gun and started shooting, hitting May in the head, chest and arm and seriously wounding two other doctors.

The carnage, coming after a series of violent incidents, prompted a wave of safety improvements, including the installation of metal detectors at hospital entrances, bulletproof enclosures in emergency rooms and the addition of more security guards.

Now, 20 years after the attack, officials want the metal detectors removed from parts of county hospitals to make them more welcoming to patients in the newly competitive marketplace being created by the Obama administration's healthcare overhaul. The machines in the emergency rooms will remain, but the others are to be taken out by summer. The proposal comes at a time when high-profile shootings have put the nation on edge and prompted emotionally charged debates about the availability of assault weapons and the presence of armed officers in schools.

The county's director of Health Services, Mitchell Katz, says metal detectors stigmatize poor patients and visitors and give the impression that the county facilities are dangerous. Security is paramount, but metal detectors aren't the best way to ensure that, he argues. Most other urban hospitals in L.A. County do not have the machines, relying on guards to provide safety, he said.

"It is a different moment to look and ask ourselves, 'What is the best way to do security?'" Katz said.

But the proposed changes have patients, nurses and doctors worried and are drawing opposition from law enforcement and union members.

May, 67, who suffers from post-traumatic stress disorder, is among those asking administrators to reconsider. He works part-time at the county's Hudson Comprehensive Health Center south of downtown, where he says the metal detector gives patients and staff peace of mind.

"I feel angry, frustrated and resentful," he said of the proposal to remove the devices. "We wouldn't have been shot if they were there then."

Paul Kaszubowski, 64, another doctor shot in 1993, said the bullet shattered his arm and grazed his head. He still suffers problems with his arm and has occasional flashbacks. Removing the metal detectors doesn't make sense, he said. Providing compassionate and high-quality care is the best way to attract and retain patients, he said.

Beginning next year, uninsured patients will be eligible for Medi-Cal coverage and have more options outside of the county's healthcare system. That is driving safety-net hospitals to improve their customer service so they are no longer the providers of last resort.

But that push is running headlong into a record of violence at urban medical facilities, where healthcare workers are often the victims of assault. Hospitals are intrinsically high-risk places, and metal detectors can help prevent violent attacks, said Jane Lipscomb, a University of Maryland professor who has studied hospital safety.

The county's largest public hospital workers' union is trying to stop the removal of the scanners and sent a letter to Katz saying the action is a "huge decision" that could put patients and staff in harm's way.

Longtime County/USC nurse Sabrina Griffin, a union representative, vividly remembers the 1993 shooting and fears something similar could happen again if the screening equipment is removed. She particularly worries about gang retaliation spilling into the hospital after a shooting or stabbing.

"I just feel safer having the scanners," she said.

Sheriff's Department Capt. Chuck Stringham, who oversees security at the county healthcare facilities, said late Friday that the department is opposed to the wholesale removal of the metal detectors without another plan for weapons screening.

County hospitals mirror the crime and violence of surrounding communities, he said, and the scanners serve as the first line of defense — finding guns, knives, box cutters and other weapons.

The county removed the metal detector equipment from the outpatient building at County/USC in July, and no violent incidents have been reported there since doing so, according to the Sheriff's Department. By June 30, the county plans to remove 26 more machines from County/USC, Harbor-UCLA Medical Center, Olive View Medical Center and the Martin Luther King and Hudson centers.

Patients and visitors entering another County/USC facility last week emptied their pockets of cellphones, keys and wallets before stepping through the scanners. In a period of a few hours, guards confiscated two pocketknives.

Walter Johnson, 59, who had an eye appointment, said removing the machines is "crazy." "How would they know if anyone is coming in with a gun, or an AK-47, or a knife?" he said. "The minute you take these out, you are gonna give some idiot some excuse to do something."

Michelle Mendez, an ER nurse, said metal detectors are needed in the emergency room but not elsewhere. "I think [visitors] would feel more comfortable when visiting their loved ones, knowing we aren't so concerned about violence and crime and weapons," she said.

Tammy Duong, a medical resident in the psychiatric unit, said the machines can be intimidating. But she worries about what might happen without them.

"Just because it is a hospital," she said, "doesn't mean violence can't spill over."

anna.gorman@latimes.com

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Wired Science Space Photo of the Day: Wheatley Crater on Venus

Magellan radar image of Wheatley crater on Venus. This 72 km diameter crater shows a radar bright ejecta pattern and a generally flat floor with some rough raised areas and faulting. The crater is located in Asteria Regio at 16.6N,267E.

Image: NASA/GSFC [high-resolution]

Caption: NASA

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