welcome to "world news." tonight inside the bunker. our first look within the mountain hideout of a heavily wanted husband wanted for killing his family. and the real concern over the deep freeze coming. crops confused. farmers scrambling. what is at risk tonight and what will it do to prices in the supermarket. cancer confusion, the medical news breaking about men in a very common form of cancer. now some scientists say surgery might not be needed after all. we reach out to a team of doctors tonight. and to the rescue, that tv doctor from seattle. >> hold on. >> and tonight word of his real-life rescue.

good evening. it's great to have you with us tonight. we begin this saturday evening with a tense and dangerous stand off. swarms of s.w.a.t teams on the ground and in the air, surrounding a husband wanted for killing his wife and daughter. it is finally over. after two days of holding police at bay. authorities say the man was preparing for the end of the world deep inside his hand-built mountain bunker near seattle. look at these pictures coming in tonight. the entrance hidden under leaves and dirt. our first look inside the hideout that took apparently eight years to build, packed with weapons and ammunition, carved right into the side of a mountain. the siege comes to an end as he took the life of his family, and then himself. neal karlinsky near rattlesnake, washington. neal. >> reporter: david, good evening, what an incredible standoff out here. it's all playing out deep in the woods about a mile from this police check point. that is where they say they found the suspect hidden inside what they're calling a very

sophisticated and well fortified bunker. the terrain was so rugged police helicopters made 40 trips to drop s.w.a.t team members in by rope. from every side they approached and fired tear gas into the homemade bunker looking for 41-year-old peter keller, believed to be heavily armed and hunkered down with a gas mask, booby trap and supplies deep inside. by this morning they decided to blow the roof to the bunker's entrance. that's when they found his body on the ground. >> they have seen within a dead body, again with a great deal of blood around it. >> reporter: keller was wanted for the murders of his wife, lynnette and 18-year-old daughter. both were found shot to death in the family home a week ago when the house was set on fire. keller a longtime survivalist recently told a co-worker that he with drew $6200 from the bank and might not come back.

>> we were utterly blown away that this happened. excellent employee. i mean, you set your clock by him. >> reporter: police say keller had been working on this bunker for eight years. it was built into a hillside and went 20 feet back. even included cement supports and two levels with multiple hatches for coming and going. >> amazingly fortified. they said it's unbelievable. that pictures don't do it justice. >> reporter: finding the bunker wasn't easy. detectives found his pickup truck at a trail head, then triangulated the location from photos found on the suspect's hard drive and trackers following footprints in the woods. tonight, a family devastated by the loss of keller's wife and daughter have told police they're relieved he's not a threat to anyone else. it's still an active crime scene and no one will get near it any time soon. police are still concerned about possible booby traps and explosives inside. david. >> neal karlinsky leading us off tonight, neal, thanks to you. we have breaking news out of st. louis, we learned one person

has been killed, 100 injuries when a tent collapsed in high winds in severe weather, downtown near busch stadium. you can see the weather map right at this hour. the severe weather system moving through the area with heavy winds and rain. we're told five people in critical condition, 1 person has died, 100 injured near busch stadium in st. louis. we'll condition to track this story. the other concern, the freeze warning around the nation. this is extreme and could affect the prices we pay at the supermarket. the system is sending temperatures plunging on this last week of april. lows drive into the 20s, maybe lower. and tonight farmers are racing to protect their crops to head off the damage. ginger zee on the freeze tonight. >> reporter: the fires, the fans, and the sheets no it's not a camping trip. it's the round the clock coddling of crops. with the frost and worst deep

freeze on the way from michigan to massachusetts by sunday morning, many farmers in for another sleepless night. >> we're watching the weather very, very closely and prepared to take the next steps if we have to. >> reporter: from the lifeless asparagus in iowa, to the fate that this connecticut orchard wants to avoid, this spring has been full of frosty fear. >> all of the leaves and blossoms and buds on the tree, it won't take much to stamp a lot of that stuff off. >> reporter: farmers are warming their field was fire. >> in the low-lighting areas we're lighting fires to try to keep the low-lying areas a little warmer. >> reporter: the last freeze of the season for this region doesn't usually come until early may. but a record heat in march confused crops causing some to develop three to six weeks ahead of schedule. >> we were up every half hour last night looking at the temperatures. >> reporter: jason at demarest farm in new jersey is keeping an eagle eye on his fruits and veggies. >> it will start with the

vegetable prices first. because they're more susceptible to the frost. >> and meteorologist ginger zee is with us on the desk in new york. you were telling us, that seen those it's freezing, some of these crops are going to surprise this? >> yes, especially near the coast. because of the overall warmth. the new jersey farmer told us, he will see overall record numbers for his apples and peaches. >> nonetheless as we look at the map. this has been a season of extremes and cannot make it easy you told thaus that system is moving quickly? >> it is. we'll be watching it through the night and parts of tomorrow. >> thank you, we turn to the medical head line breaking today that will cause concern and confusion for many american men. a sweeping study raising questions about the best way to treat prostate cancer.

nearly 242,000 men in this country, close to 700 every day, face prostate cancer alone. tonight, abc's tanya rivera reports this new research is casting doubt on whether surgery is really the best option. >> reporter: when warren buffett revealed his prostate cancer diagnosis earlier this month, he told investors he will be fine. now a new study, saying a course of nontreatment might be best for thousand of patients like buffer fet with early stage prostate cancer. >> for an 80-year-old man, with low risk cancer of the prostate, the likelihood is they will die from something other than prostate cancer. >> reporter: stunning research suggests surgery for early stage patients is rarely necessary. >> the study has a potential to be a game-changer for prostate cancer. >> reporter: the study tracked men over 12 years and found no significant difference between the survival rates to those who

had surgery to remove the prostate gland and those who did nothing. one reason, most prostate cancers grow very slowly. in the u.s., 1 in 6 men will be diagnosed with prostate cancer in his lifetime. only 1 in 36 will die of it. after an early stage diagnosis, dr. louis potters recommends what he calls active surveillance. >> we would take the psa every three months and patients are are rebiopsied yearly, or every two years to see if there's changes. >> reporter: study found that patients with high psa levels do see a small benefit from the surgery but in the u.s., most men are diagnosed in the low risk, early stage such as warren buffett. while he is older than the recommended age for surgery, opted for radiation therapy. >> there was so many questions, because he's choosing to have the surgery, and many others forego it at that age.

you were saying it's really worth the conversation particularly given the new research? >> absolutely, because you can avoid a lot of unpleasant side effects if you don't need the surgery. it's serious surgery with serious life style implications. >> thank you, very much. we turn overseas to the case of international intrigue involving the u.s. and china, and this latest case comes five days before secretary of state hillary clinton is said to arrive for top level talks. the big question, what happened to a famous blind chinese activist a fugitive who managed to escape from house arrest and is the u.s. now protecting him. david kerley on the growing mystery and what will most certainly be a delicate diplomatic dance. >> reporter: it's like a plot from a international thriller. a blind activist. under house arrest surrounded by security guards who even peer into his windows. when christian bale tried to visit? >> why can i not visit? >> reporter: he was pushed back by security. but chen, who protested forced

abortions and sterilizations, was able to scale a wall and escape. a supporter chased him to beijing where a car chase ensued. that is where activists say chen is in the pre tekz of the u.s. officials. what does the u.s. say? >> can you confirm that chen is at the embassy or in the custody of the united states? >> i don't have anything for you on that subject. >> reporter: if true this the first time since tienanmen square that the u.s. protected a human rights activist. chen even taunted the chinese government on a video proclaiming his escape. this couldn't have come at the worst time. secretary of state clinton and treasury secretary, geithner, are said to return to beijing in a couple of days for talks. >> this does have the potential to be a major international incident. >> it could become that if it's mishandled. again, we'll have to see how the chinese handle it. >> reporter: so far the chinese significant falled this issue should not disrupt the talks but

since the u.s. long criticized the chinese human rights record, the secretary of state will be walking a beijing tight rope next week. david. >> everyone will be watching for that. david kerley in washington, thank you. there's is fresh fallout from the secret service scandal as we learn more about the agent who authorities believe was the one that argued about paying the bill that night. tonight word of new code of conduct. what are the rules now? abc's reena ninen it who has covered this reports from washington on the steps to keep this happening again. >> reporter: this maryland house, now up for sale, is believed to have been home to the secret service agent described in media reports as a family man with two boys, at the center of the scandal. accused by a columbian prostitute of not paying for her services. >> a couple of knuckleheads shouldn't detract from what they do, but what these guys were thinking i don't know. that's why they're not there anymore. >> reporter: and why the secret service has now imposed new guidelines for conduct on it' personnel.

foreign nationals are now effectively banned from agent's hotels. visiting non-reputable establishments is prohibited. alcohol may only be consumed in moderate amounts while off-duty. and alcohol is banned within 10 hours of reporting for duty. >> they are beginning to put in policies right now that will, i think, be instrumental in moving the agency forward. >> reporter: but the current investigation of misconduct is still ongoing. >> well, in the last three years, i think it's a total of 14,000 trips that the secret service has been involved with. there's only one set of allegations as far as colombia. >> reporter: over 100,000 secret service are expected to takethics classes. the president's next foreign trip will be in june to mexico. david. >> reena, thank you. and we're learning more secrets about the raid that killed osama bin laden. leon panetta who was the cia director at the time. now giving his most detailed description yet of the heart-stopping moments,

when the navy s.e.a.l.s went in to take out their target. top u.s. officials watched from that room in the white house. >> reporter: the fact, having those helicopters go in 150 miles into pakistan, and the concern about whether or not they would be detected, and then actually going in to the compound, when one of the helicopters went down because of the heat, coming off the ground, it was just hotter than anybody had anticipated. and, obviously, that was pretty nerve-racking. >> nerve-racking. >> of course we remember those tense moments inthe white house. and then this, a year ago tonight, the smiles of the white house correspondents dinner, the president knowing the operation had been launched. the raid not happening yet. there was even a joke about bin laden from comedian seth meyers. >> people know that bin laden is hiding but every day from 4:00 to 5:00 he hosts a show on c-span? >> all the while no one had any

idea they were going to get him. the white house correspondents dinner is tonight. jimmy kimmel will take jabs at the press, which is always fun. another moment, our pal jake tapper, honored for the third year in a row for intrepid and tough questioning. our congrats to jake and the jokes we'll have tomorrow night and george with the powerhouse "roundtable" will have fun with it all first thing on tomorrow's "this week." and still ahead. the wildly dietary supplement promising energy and a buzz, but what has gone awry, the deaths of two american soldiers. "world news" gets answers. told me i have an irregular heartbeat, mber r and that it put me at 5-times greater risk of a stroke. i was worried. i worried about my wife, and my family. bill has the most common type of atrial fibrillation, or afib. it's not caused by a heart valve problem. he was taking warfarin, but i've put him on pradaxa instead.

in a clinical trial, pradaxa 150 mgs reduced stroke risk 35% more than warfarin without the need for regular blood tests. i sure was glad to hear that. pradaxa can cause serious, sometimes fatal, bleeding. don't take pradaxa if you have abnormal bleeding, and seek immediate medical care for unexpected signs of bleeding, like unusual bruising. pradaxa may increase your bleeding risk if you're 75 or older, have a bleeding condition like stomach ulcers, or take aspirin, nsaids, or bloodthinners, or if you have kidney problems, especially if you take certain medicines. tell your doctor about all medicines you take, any planned medical or dental procedures, and don't stop taking pradaxa without your doctor's approval, as stopping may increase your stroke risk. other side effects include indigestion, stomach pain, upset, or burning. pradaxa is progress. if you have afib not caused by a heart valve problem, ask your doctor if you can reduce your risk of stroke with pradaxa.

that's how it is with alzheimer's disease. she needs help from me. and her medication. the exelon patch -- it releases medication continuously for twenty-four hours. she uses one exelon patch daily for the treatment of mild to moderate alzheimer's symptoms. [ female announcer ] it cannot change the course of the disease. hospitalization and rarely death have been reported in patients who wore more than one patch at a time. the most common side effects of exelon patch are nausea, vomiting, and diarrhea. the likelihood and severity of these side effects may increase as the dose increases. patients may experience loss of appetite or weight. patients who weigh less than 110 pounds may experience more side effects. people at risk for stomach ulcers who take certain other medicines should talk to their doctor because serious stomach problems such as bleeding may worsen. people with certain heart conditions may experience slow heart rate.

[ woman ] whenever i needed her, she was there for me. now i'm here for her. [ female announcer ] ask the doctor about your loved one trying the exelon patch. visit exelonpatch.com to learn more. now to our consumer watch dog report tonight. a potentially dangerous energy supplement under the microscope after the deaths of two american soldier, and so many other americans working out and using this product, the fda warns ten companies that make products containing dmaa. to prove they are safe. here's jim avila with more. >> reporter: they are wildly popular, delivering in energizing speed- like buzz before workouts. dana angelo white works with high school and college athletes all over the country. and she says student athletes ask with frightening regularity about energy supplements containing an ingredient called dmaa. >> unfortunately, the belief is, it is safe, just because it's easy to get, and i think that's a problem.

>> reporter: dmaa is available everywhere, and the fda is making its first move to stop it. the market for these pills and powders is north of $100 million a year. on websites like this one it is advertised as legal cocaine. cijay bailey is a country singer who needs to look good on stage. he used it to lose weight. >> it definitely sped me up and made me feel like i could do an awful lot. >> reporter: but bailey was stunned to learn that the pentagon had pulled dmaa supplements from all u.s. military posts and bases while investigating whether use of the supplements is linked to the death of two soldiers during workouts. harvard's dr. pieter cohen says dmaa can lead to heart attack and stroke and should be banned nationwide. he says dmaa was a prescription-only nasal spray back in the 1940s. only to re-emerge as a vitamin supplement claiming exemption from the fda approval.

it's makers say it's natural. >> this supplement is not found in any plant. and, in fact, it's only made in factories. >> reporter: one of the big manufacturers under investigation by the fda, those cars belong to federal agents, is usp labs in dallas. makers of the two biggest selling dmaa products, jack3d and oxyelite pro. usp labs defends it's products, telling abc news a billion servings have been sold and it's proven safe when used as directed. now the fda says they will have to prove that. jim avila, abc news, washington. all right. jim, our thanks to you. when we come back. turns out all of you have already voted. what is the most popular song being played at weddings right now. any guesses? y voted. what is the most popular song being played at weddings right now. any guesses? postmenopausal osteoporosis and a high risk for fracture.

i want to keep acting but a broken bone could change that. so my doctor and i chose prolia® to reduce my risk of fractures. prolia® is proven to help make bones stronger. proven to help increase bone density. i take prolia®. it's different. it's two shots a year. [announcer:] if you take prolia® (denosumab) you should not take xgeva®. prolia® can cause serious side effects, including low blood calcium levels, serious infections... ...some of which may require hospitalization, and skin inflammation, rash and eczema. tell your doctor if you develop dental problems... ...as severe jawbone problems may happen. what's out there matters to me. so does what's in here. break a leg! thanks ed. ask your doctor if prolia® is right for you. the calcium they take because they don't take it with food. switch to citracal maximum plus d. it's the only calcium supplement that can be taken with or without food. that's why my doctor recommends citracal maximum. it's all about absorption.

why you fell in love with her in the first place. and why you still feel the same. but your erectile dysfunction -- that could be a question of blood flow. cialis for daily use helps you be ready anytime the moment's right. you can be more confident in your ability to be ready. and the same cialis is the only daily ed tablet approved to treat ed and symptoms of bph, like needing to go frequently or urgently. tell your doctor about all your medical conditions and medications, and ask if your heart is healthy enough for sexual activity. do not take cialis if you take nitrates for chest pain, as this may cause an unsafe drop in blood pressure. do not drink alcohol in excess with cialis. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long term injury, seek immediate medical help for an erection lasting more than four hours. if you have any sudden decrease or loss in hearing or vision, or if you have any allergic reactions such as rash, hives, swelling of the lips, tongue or throat, or difficulty breathing or swallowing, stop taking cialis and get medical help right away. ask your doctor about cialis for daily use and a 30-tablet free trial.

lucky for you, air optix brand has a lens approved for up to 30 days and nights of continuous wear. that's why we recommend them most for people who sleep in their lenses. visit airoptix.com for a free one-month trial offer. well, this caught our eye. a knew research found that a chemical that determines just how generous and caring we really ar. they made the discovery by studying people who go to weddings. ♪ i'm wondering what dress to wear now ♪ i say a little prayer for you ♪ >> family and friends always gather like this scene from the

rehearsal dinner at "my best friend's wedding." they looked at people and tested them who were invited. tested them for the hormone oxytocin. it's related to a female reproductive organ. we all have it. and the more we have. the more trusting we are. particularly when we're marrying our husband or wife. dr. patrick dempsey, apparently saved a life for real when a teenager crashed his car near his home. he he rushed to the scene and got the boy out. we're told he's recovering from the hospital with another more than a concussion. less dramatic than the tv show you see right there. as we mentioned the wedding season. couples are choosing what songs they'll play. they found 66,000 play lists that people created on their websites. apparently this is their top choice. ♪ party rock is in the house tonight ♪ ♪ everybody have a good time lmfao's party rock theme, making everybody get up on the dance

floor and the number two song journey's don't stop believing" so that 1981 song, making a come back. and when we come back, famous faces and the science behind why you find them so appealing. behind why you find them so appealing. c'mon dad! i'm here to unleash my inner cowboy. instead i got heartburn. [ horse neighs ] hold up partner. prilosec isn't for fast relief. try alka-seltzer. it kills heartburn fast. yeehaw! that's how it is with alzheimer's disease. she needs help from me. and her medication.

the exelon patch -- it releases medication continuously for twenty-four hours. she uses one exelon patch daily for the treatment of mild to moderate alzheimer's symptoms. [ female announcer ] it cannot change the course of the disease. hospitalization and rarely death have been reported in patients who wore more than one patch at a time. the most common side effects of exelon patch are nausea, vomiting, and diarrhea. the likelihood and severity of these side effects may increase as the dose increases. patients may experience loss of appetite or weight. patients who weigh less than 110 pounds may experience more side effects. people at risk for stomach ulcers who take certain other medicines should talk to their doctor because serious stomach problems such as bleeding may worsen. people with certain heart conditions may experience slow heart rate. [ woman ] whenever i needed her, she was there for me. now i'm here for her. [ female announcer ] ask the doctor about your loved one trying the exelon patch. visit exelonpatch.com to learn more.

visit exelonpatch.com for many, nexium helps relieve heartburn symptoms caused by acid reflux disease. osteoporosis-related bone fractures and low magnesium levels have been seen with nexium. possible side effects include headache, diarrhea, and abdominal pain. other serious stomach conditions may still exist. talk to your doctor about nexium. and finally tonight the rules of attractions.

and there really is a science to it. here's nick watt. >> reporter: beyonce has been crowned the most beautiful woman on our planet by "people" magazine. how do they know? isn't beauty intangible, unquantifiable? halle berry appeared on "people's" list 15 times. julia roberts 13 times. j-lo, 11. and there's a scientific explanation. >> underneath it all. we're all hard-wired to pick up on certain attractive features. >> reporter: a recent study reduced a remarkable formula. between the eyes must be 46% of the width of the face. eyes to mouth. 36% from forehead to chin. >> reporter: i've been measuring the faces of beautiful women, trying to disprove these rules. i was hoping michelle pfeiffer's eyes were too far apart. they're not. they're perfect. all of these women come within 1% to 2% of these ideals. angelina jolie, bridget bardot, megan fox, naomi campbell and, of course, beyonce.

but why do we find such symmetry irresistible? >> symmetry is associated with health and vigor. >> reporter: and that's attractive in a potential mate. florence colgate, a totally symmetrical teen just won a model search on british tv. >> obviously my family said you're beautiful. because they're bias. it's amazing you can look at scientific measurements and decide whether you're beautiful or not. >> reporter: editors don't sit around measuring faces when they're making up their list. they don't have to. because humans are pre programmed to find beyonce babilicious. nick watt, abc, london. >> none of the sketches show the beauty on the inside. that's the broadcast for today. thanks for being here. "this week" with george, hope to

see you back here tomorrow night. good night. >> ama: with a big crash part of doyle drive becomes history. the weekend demolition is well underway. >> alan: we were prepared for a mess on area roadway but it's not all that bad. >> ama: you have team coverage tonight, sergio quintana is at the ferry terminal, and first we begin with lisa amin gulezian and with a live look at the impact from the closure. >> lisa: we are here at the caltrans route that people want to take from the bridge. park pre seedow -- pre presidio