bombers have help? >> investigators closing in on that answer and now focusing on a mosque in russia as a list of possible accomplices grows plus this -- >> the doctor told me that i had tested positive for hiv. i was stunned. >> amanda knox tells her story with brand-new details of her six-year saga, prison, panic attack and abuse by guards. the cringeworthy video taken on a popular mountain road in los angeles. we'll show you what happens next. an emotional night on the dance floor as a surprising fan favorite is sent home. good morning. we begin with something of a price tag stemming from the boston marathon bombing. >> a new estimate this morning says the attack did over $300 million in damage to the boston economy. that's when lost wages, retail

sales and damage to infrastructure are taken into account. >> there's also news on the investigation. for that we're joined from washington by abc's devin dwyer. good morning, devin. >> reporter: good morning, diana and john. authorities believe they've now identified a turning point when tamerlan tsarnaev, an american resident, allegedly became radicalized. this russian mosque, a known gathering spot for extremists is the new focus of the bombing investigation. it's there u.s. officials believe that tamerlan tsarnaev met with this man, mansour nadal, a known terror recruiter killed by russian authorities last year. >> tamerlan tsarnaev. >> reporter: this video obtained by "entertainment tonight" is the first time we heard tamerlan's voice. the young american boxer who authorities say had internet contact with william plotnikov, a canadian man who joined a terror group. the alleged connections offer new clues about what might have inspired him on a trip to russia last year.

intelligence officials are investigating how warning signs may have been missed. >> we want to leave no stone unturned and we want to see is there, in fact, additional protocols and procedures that could be put in place, and we won't know that until that review is completed. >> reporter: meanwhile, the hunt for possible accomplices continue. abc news learned authorities identified almost a dozen persons of interest including tamerlan's widow catherine russell who submitted dna samples to the fbi. tamerlan tsarnaev's body still remains in that boston morgue. an attorney for his widow says she's given permission for the tsarnaev family to claim it for burial. >> devin dwyer, thank you. one final note about the boston bombings, the father of a wrongly accused teenager is considering a lawsuit against the new york tabloid stemming from the "new york post's" headline bagmen in the days after the attack. now they may sue the paper

claiming his son is suffering trauma after appearing in that photo. after showing off his chops, president obama is back to serious business. in a wide-ranging news conference, the president said until there is, quote, hard, effective evidence that syria used chemical weapons against its citizens he will not consider military action. the president also addressed guantanamo bay vowing to renew his push to close the detention facility. he also expressed concern about the dozens of terror suspects held there who are engaged in a hunger strike. investigators in mississippi say the man accused of sending ricin laced letters to top officials ordered caster beans on ebay. ricin is derived from those beans. james everett dutschke is ing held without bond in this case. they found traces of ricin on a dust mask and in a martial arts studio he used to own. may 1st and authorities in seattle are gearing up hoping to avoid a repeat of the violence during last year's may day march. there will be demonstrations

there, as well as in los angeles where some 30,000 people are expected to call for immigration reform. here in new york the occupy wall street movement has a full day of protests scheduled. venezuela's post election tensions erupted into a brawl in the national assembly overnight. at least one lawmaker was left badly bruised and bleeding. the punches started being thrown when opposition members unfurled a banner. there's been bad blood ever since the new president achieved a narrow victory last month. in her first interview on television amanda knox tells diane sawyer she only recently learned how she was being portrayed in the media and as she faced charges, she-devil, sphinx of perugia are only a few of the labels but they're all wrong, she says. here's brandi hitt. >> reporter: amanda knox released her memoir "waiting to be heard" in an exclusive interview with diane sawyer knox said she wants to clear her name.

>> did you kill meredith kercher? >> no. >> were you there that night? >> no. >> do you know anything you have not told police that you have not said in this book, do you know anything? >> no. >> reporter: knox was an american college student studying abroad when arrested and tried for the 2007 murder of her roommate, british student meredith kercher. >> what happened to me hit me like a train and there was nothing i could do to stop it. >> reporter: knox and her then boyfriend were both convicted in italy a highest court after serving four years of a 26-year sentence in a tiny room with only a small window, her conviction was overturned. >> did you think about suicide? >> i did. >> reporter: in her book knox wrote about her panic attacks, losing her hair and finding out the results of a blood sample she had given. >> and the doctor told me that i had tested positive for hiv.

i was stunned. i went back to my room with one of the prison officials telling me, well, you should have thought about it before you had sex with all those people. >> reporter: she listed the seven sexual partners she had in her life. >> and they leaked it. >> they leaked it to the media. >> reporter: later she was told it was all a mistake. she was not hiv positive. in march the italian court overturned knox's acquittal and ordered a new trial. brandi hitt, abc news, los angeles. >> and you will hear more from amanda knox when she sits down for her first live interview later on "good morning america." all right, time now to check the weather across the nation, it's not going to look at all like may 1st for denver. almost minneapolis, snow will slam the entire area with 5 or rather 3 to 5 inches in some spots, also lots of wet weather along the gulf coast and through much of the midsection. >> take a look at those readings on the east and west coast. that's more like it, snow zone,

though, 30 degrees below normal. coming up, the new warning about ground beef. >> and a big move for the morning after pill stirring up new debate this morning. it looks simple but it took cutting-edge technology to create this little guy. what makes this movie so amazing. coming up in "the pulse."

the housing market on a wild upswing right now being driven by a dwindling supply of home. and home prices have soared up 9.3% since february. that is the fastest monthly increase we've seen in seven years.

now, among the hottest markets and homes is phoenix, that shot up 23%, san francisco, 19% and las vegas, 18%. there are 25% more buyers than last year. but few homes for sale. for the second day in a row the s&p 500 index opens trading this morning with a record high. now it's just a slight gain from yesterday. the s&p is now less than 3 points from the psychologically important 1600 level. some analysts say passing that mark is a signal that the current bull market has staying power. others would tell you, though, it's time to do some selling. well, apple is making the original iphone obsolete. those phones hit the market in june of 2007 but next month the company is declaring them obsolete in much of the world and vintage here in the u.s. and that basically means most people still using original iphones won't have access to apple repair services. the country's first legal online gambling site is now up and running. ultima ultimatepoker.com dealt its first hand in nevada yesterday.

games are available 24/7. players must be at least 21 years old and physically be in the state when they play. new jersey and delaware are expected to follow suit. but they're still basing regulatory hurdles. sales of humus are growing so fast in the u.s. that the farmers in virginia are now being urged to grow chickpeas instead of tobacco. it is being driven by the search for healthier snacks, sales have jumped about 5% over the past couple of years. i suppose dipping a chip in humus is probably a little point better than dragging on some tobacco. absolutely. when we come back why michael jackson's mother left the courtroom during the testimony. an all-out brawl at a fraternity party. just the latest incident at this school. the burger joint visited by the living and the dead. did they capture a ghost on tape? more when we come back. [ indistinct conversations ]

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take a look at that. this is absolutely not any way that a driver wants to end up especially not a police officer. this cop was chasing down a driver for not wearing a seat belt when he lost control himself and went right up the power pole. he wasn't hurt but did end up with a traffic ticket all of his own. >> getting teased by his fellow officers today. >> i'm sure. >> let's check the morning roads. conditions there, rain will slow the commute along the gulf coast and from dallas north to the great lakes. you may need your four-wheel drive or tire chains to navigate through some snow expected in denver northeast into parts of minnesota. if you're flying airport delays are possible in new orleans, miami, denver and minneapolis. major league development in the course against george zimmerman. he decided not to seek immunity under florida's stand your ground law.

he appeared before a judge yesterday. >> defense attorneys say it was a tactical move so zimmerman can get a trial before a jury as opposed to a judge deciding the case. this trial is set to begin in six weeks. emotional day for michael jackson's mother leaving a los angeles courtroom in tears after testimony in the wrongful death lawsuit against concert promoter aeg. a paramedic testified when he arrived at jackson's home the day he died he didn't recognize the singer because he looked like someone at the end stage of a long disease. he told jurors that jackson's doctor, conrad murray may have been motivated by money. they're trying to figure out if a series of robberies are linked. the latest at a cartier story in maryland. he was buzzed in then detectives say he kept the door open for aggressive robbers who took control of the store. it took less than one minute. new video from a massive drawl over the weekend at a fraternity party this tempe,

arizona, involving students from arizona state. five were hurt, five others arrested. this recent violence has local lawmakers calling for a crackdown. a california couple reunited with their baby boy after losing custody following a hospital visit. it all started when anna and alex nikolayev took their 5-month-old son sammy to a sacramento hospital with flu-like films. they moved him to another hospital for a second opinion. they took him away citing neglect but a judge stepped in giving the child back to his parents. >> when we can we can be with him and hold him in our arms and don't have been scared anymore. >> they say the second hospital cleared their son to go home and feel they were violated after he was taken from them. girls as young as 15 can buy the morning after pill without a prescription and will be available on drugstore shelves no longer locked behind pharmacy counters. the fda lowered the age to buy

the plan b one step emergency contraception from 15 to 17 or rather from -- 17 to 15, but the move falls short of a court order requiring the pill to be made available to women of all ages. and a big warning for people who eat ground turkey. new testing on several brands of meat show most is tainted with dangerous bacteria. "consumer reports" tested more than 250 samples of ground turkey and found 90% of it contained e. coli. staph and other bacteria. they urge to thoroughly cook the meat. a frightening incident from mulholland drive. a motorcyclist plows into two guys on a bicycle. check it out, the guy who got hit first spent time in the hospital. already out, did not suffer any broken bones. the other cyclist and the person on the motorcycle were not seriously hurt. >> ouch. while you take a look at that,

how about sports. nba highlights from espn. with your "sportscenter" update i'm chris hassel. last night two pivotal playoff games in the western conference. we start with steph curry and the red hot warriors trying to finish off the nuggets but the nuggets weren't done with curry. physical in this game. javale mcgee with a hard screen and kenneth faried, maybe a little trip. curry not pleased. first curry with an opportunity to pull the car yores within two late. missing. klay thompson missing. and the nuggets survive, 107-100. a game six. that fan probably won't be there. he's a nuggets fan and got under the skin of curry, 15 points, 1 of 7 from three-point land. game six thursday. game five between the clippers and grizzlies. first quarter, blake griffin,

giving l.a. a one-point lead but griffin had trouble with a high ankle sprain he suffered it in practice. fourth quarter, grizzlies up seven. putting it away. zach randolph, 25 points, 11 rebounds, a road team has won a game in this series. grizzlies lead 3-2. game six in memphis on friday. three more nba playoff games later on tonight. we are in full swing in the nba and the nhl playoffs under way, as well. i'm chris hassel. have a great day. >> all right. take a look at this video. a burger joint in the beautiful city of savannah claims it has a ghost and you might agree. look at the bouncing light on the right side of the surveillance video in that bar there. >> if that's not convincing enough, watch this. they tumble right over on its own. nobody was touching it. you saw it. no wonder savannah is considered a haunted city. >> do you know my first television market was savannah, georgia, and, yes, the cemetery there, a lot of famous haunted places in savannah, georgia.

>> yeah, no, thanks, i'll stay as far away as possible. >> not a fan of ghosts. >> not at all. coming up next on "the pulse," what it took to create the tiniest little movie ever. we'll show it to you. someone help this guy. the weatherman with the hiccups at the worst possible time. >> bear with me. excuse me. meyerland, here's the big picture. i had enough of feeling embarrassed about my skin. [ designer ] enough of just covering up my moderate to severe plaque psoriasis. i decided enough is enough. ♪ [ spa lady ] i started enbrel. it's clinically proven to provide clearer skin. [ rv guy ] enbrel may not work for everyone -- and may not clear you completely, but for many, it gets skin clearer fast, within 2 months, and keeps it clearer through 6 months. [ male announcer ] enbrel may lower your ability to fight infections. serious, sometimes fatal events, including infections, tuberculosis, lymphoma, other cancers, nervous system and blood disorders,

and allergic reactions have occurred. before starting enbrel, your doctor should test you for tuberculosis and discuss whether you've been to a region where certain fungal infections are common. you should not start enbrel if you have an infection like the flu. tell your doctor if you're prone to infections, have cuts or sores, have had hepatitis b, have been treated for heart failure, or if you have symptoms such as persistent fever, bruising, bleeding, or paleness. if you've had enough, ask your dermatologist about enbrel. as well as they could

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. my doctor recommends citracal maximum. it's all about absorption. do you really think brushing is enough to keep it clean? while brushing misses germs in 75% of your mouth, listerine® cleans virtually your entire mouth. so take your oral health to a whole new level. listerine®... power to your mouth™. ♪ you got the moves like jagger i've got the moves like jagger ♪ ♪ i've got the moves >> it is time to check "the pulse." stories you might be talking about today. we'll start off with the tiniest movie ever made. take a look. a boy dancing, a ball bouncing on a trampoline.

can you guess how this was made? >> i'm going to tell you. scientists over at ibm repeatedly rearranged individual carbon monoxide molecules. you heard me right. those are molecules. to gain this effect used a microscope that magnifies the surface over 100 million times. the technology is going to help data storage become even smaller. >> that is just incredible. all right, a story like this one about a fellow tv news professional. might be bad karma but we can't resist. >> on the west side, excuse me. i have the hiccups, of course, what happens when we have heavy weather. excuse me. bel air to meyerland. excuse me, big picture. have you had the hiccups before. >> david paul of station khou in houston. suffering from a bad case of the hiccups. full credit to him and stays with it. did nearly three full minutes like that. >> won goering if he's like,

should i just toss it back to the desk. >> should i toss it back. >> three whole minutes. >> he deserves a prize. >> he does. well, adorable baby girl made her debut in ohio a long way from her old home. >> gladys, three months after she was aban dored by her mother. the gorilla was transferred from texas. now being raised by ten human care givers. wow. equipped with fur there that make her feel right at home. >> oh, gladys will soon be paired with a female gorilla that's willing to step up as her surrogate mom. what a cutie pie. >> i want one of those. i want me a little baby gorilla. >> wait till gladys is 3 and twice your size. >> especially my new york city apartment. might not work out. >> might not fit. >> no. >> for some of you, your local news is next.

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that his widow has given the okay. big rallies planned across the country to mark may day, immigration reform is the issue, large demonstrations will be focusing on it in several major cities. new revelations from amanda knox who says charges of murder hit her like a train and says prison officials lied to her telling her she was hiv positive. more from amanda knox ahead on "gma." looking at today's weather, heavy rain all along the gulf coast, several inches of snow from denver to minneapolis. warm and sunny, though, in the west. and finally this morning, no last laugh on "dancing with the stars." the mirrorball trophy eludes yet another comedian. >> an emotional farewell after weeks of just squeaking by. kabc's george pennacchio was there. >> i really was just trying my damnedest. >> andy and sharna. >> reporter: andy dick never made it to the upper half of the

judges' leaderboard but still it made it three weeks shy of the finale. >> it's just been the best. this has been the hardest thing i've ever done in my life. >> reporter: andy first took on the foxtrot, next came his jazz routine. he followed that with a cha-cha then got his best score for the elegant viennese waltz brought drama and fun to his pass owe doble but it was his signature from fun to the rumba. >> beautiful person down to the core of his soul and all you got to do is spend time with him to know that. >> reporter: and this dancing cast does know that. ♪ how could it be somebody took my friend from me ♪ ♪ my best friend's gone and i'm so tired and alone ♪ >> reporter: andy won't win the mirrorball trophy but still

feels victorious. >> this has revitalized my career to say the least but i'm more interested in how it's revitalized me as a person. i feel alive again. >> reporter: next week each of the remaining six couples will tackle an individual number and a trio dance. it all kicks off again week eight monday on abc. in los angeles, george pennacchio for abc news. >> he was winning heart as cross the country but -- >> choked up. >> i think he knew deep down inside that he was kind of squeaking by. >> he had a great run and he was entertaining to watch because he gave hope to lots of people who maybe aren't the most gifted. >> that is true. it was nice to see him do that. >> that's what's making news in america this morning. >> stay with us. "good morning america" is coming up. >> live and in hd, this is "good morning washington," on your side. >