his is "nightline." >> tonight, powerball mania gripping the nation, people lining up for hours in the hopes they will strike it rich. >> ticket right here. >> jumping in on the office pools. >> 100% confident. and we'rentasy home could look like if you win big. >> whoever wins, call me. >> i was in shock. i was devastated. plus, a twisted love two doctors, one woman. she thought she found the love of her life until he was taken from her. and the woman at the center of

telling us her story for the first time this night. and who run the world? perhaps it's channing tatum in an battle. but how did his performance hold

good evening, thank you for joining us. tonight, it's the single largestt in u.s. history. and the odds that you or i will win is roughly 292 million to 1.s of people are jumping in office pools, standing in line, and it seems just about everunning wild about what you could do with all that cash. >> reporter: imagine your life changing tomorrow. suddenly you can afford every luxury your heart desires, like this sprawling penthouseyork city. >> i'm 6'4", so this is like three ck eggland would be happy to sell it to you.

>> reporter: for $30 million.becoming an overnight multi millionaire are driving an all-out lotto frenzy. >> i look for it to grow some more today. we'll see what happen jackpot, $800 million and counting. the largest the world has ever seen. >> we've been waiting two hours. >> reporter: and on the eve of this powerball draw, people are lining up for a chance to win've got the winning ticket right here. >> right there, right there, there's the winner. >> no, probably not a l, people reporter aren't deterred by the odds, waiting over two hours today in >> everybody's got a dream. >> reporter: afterjackpot, numbers will be history-making. >> we're in uncharted territory. we're at levels we've never seen

prize is for payments paid out over third years. 30 years. thet is $496 million before taxes. that ain't so bad. >> we're about to go out and tell the employees that we just purchased 11 lottery ticketswerball this saturday. >> atop the 60th floor, monica from x ad is surprising her staff today with what could be a fortune. >> we know the odds, but if you you're never going to win. so we have to at least try. >> 11 powerball tickets. that's 11 chances to win. >> i know we'veuzz around the office. so we were thinking, why don't we buy tickets for the office? [ applause ] >> here are the tickets. monica and i are going ton safe-keeping. if we win, half the winnings will go to the charities of our

divided amongst all of us.ers may love the camaraderie right now. >> i think it's amazing. >> reporter: but office pools can quickly go wrong.nia co-workers barely had time to celebrate their $315 million prize when they were sued by four co-workers who claimed they had oral agreements to be part of the office pool. the cases. then this construction worker in new jersey, he was in charge of buying the lottery tickets for his work pool. but without telling anyone, claimed a $38 millionhis alone. he was sued and lost. >> if you don't do it right, there could be disputes. who's in the office pool? which ticket was purchased forersus which for the individual? >> reporter: i went to the office where 15 of the interior designers are in the powerball pool. or is it 16? >> i thought i was in the don't know if the boss is in the pool. >> we have it written down. i don't know. >> this is the most unprepared pool i have ever seen.

gone in together on 77 powerballth no plan of what they'd do if they actual won. >> we'll work it out. >> they draw it on saturday. >> office pools can be good thing is, whoever's buying the tickets needs to copy them, send them to the group in an e-mail, saying this is the group, these are the only people in the group and these are your >> this real estate office in florida hit it big, and even though the new girl had no money for a ticket, they still cut her in. >> the fact that we got to se most never have in a lifetime, winning a powerball, we grew closer. >> now they're all really good, really rich friends, and ready to get even richer. >> i feel 100%. >> reporter: remember, it could grow to a billion dollars. so go ahead and dream big. recall that $30 million penthouse, you could buy 26 of mever wins, call me.

beby-coastal with this $42 million estate in may favorite thing about this house is how you walk in and see views all around. >> reporter: where no expense is spared. >> this is the sexiest in beverly hills. >> reporter: if you want to wear your winnings, you could buy the hope diamond, or two. or or your closest friends. need some new wheels? maybe a tesla electric car. you could buy 7,619 ofefore we get carried away, we should mention the odds. 1 in 292.2 million. in other words, you might as well wave your goodbye. but if you do win, be careful. >> friends are coming out of the wood work, family that they didn't know they had. >> reporter: winning big can comeouble.

search and find the disasters of lottery winners who lost all their monies. they spend it on houses and cars realize there's upkeep for those things. they buy things for their friends and families, to be the big shot. >> back in 1991, went from electrician to millionaire when he won $5 million, then the largest lottery pay-out later. nearly 30 years later, his over-the-top spending has left him dead was lucky compared to abraham shakespeare, who won $17 million. >> i would like my old life back, where i could walkormal person. >> reporter: three years after he hit the jackpot, police found his body buried in this woman's backyard. she was later convicted of erts say you can avoid becoming the next lottery horror story. >> soon as you realize you're the winner, sign the back of the ticket, copy it, place. >> reporter: and keep a low profile.

parade your family out in public is you don't want everyone knowing that your child now has $300 >> reporter: but most likely the odds are so low. this won't be your problem or theirs either. >> if you won, i would buy a beach house, a helicopter, a like six destinies for my friends. >> there's no harm in all of us dreaming. t.j. holmes for "nightline" in up next, a twisted love triangle that left one woman heart-broken in a murder for hire plot. and later, a hollywood hunk queen b, stunning everyone in a show-stopping lip sync battle. (music) emember all the projects, presentations, or meetings i gave up my nights for. but days like this, i'

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it was a real-life murder for hire love triangle in texas. tonight, how the twisted plot unfolded from dance lessons toequences. the woman caught at the center speaking out for the first time tonight. here's abc's ryan smith. >> i had always was a little kid, i'd see these older couples dancing. every step was perfect and every move was in unison. were one. >> reporter: rashel was looking for the perfect partner in dance, and in life. she thought she found him. in a wealthy doctor.rful dancer and he truced himself to me, my

>> reporter: but somebody else wanted to cut in. >> hello, i'm dr. the emergency. >> reporter: three people trapped in what would become a dance of death. >> there's a bullet. >> i need somebody to hurry. >> reporter: one of those people joseph known doctor, successful businessman, and multi millionaire. >> he's living the single life, having a fun time. >> reporter: so it wasn't about >> i don't think he would have gotten married again. >> at 19, sanjay married his high school sweetheart becky, but the marriage fell apart. so the docto the dating scene. >> he went on a lark to a dance class, ballroom and salsa and through that dance community, he found his confidence again. >> reporter: and that's where he finds her. rachel >> she's blonde, she's tall, she's gorgeous.

both divorced, both with grown children. their first date, a football game with his r: it's the first date and he's bringing you around his family. >> it really wasn't a big deal to me. i certainly wasn't nervous about it. >> reporter: soon, he takesndchildren in los angeles. then to paris. >> it was really a dream come true. we bought a lock, you throw the river and that locks in the moment forever. >> reporter: but for rashel andwould only be weeks. rashel learns that the love of her life has been murdered. a landscaper finds his body. >> there are place cards there's crime scene tape all around joseph's house. it was just absolute chaos. >> reporter: detective zach johnson catches the asks her to come in for questioning?

relationship with dr. sonar? >> he's the love of my orter: he asks her if she knows anyone who had a grudge against him. she rattles off a list about his she asks her about her past boyfriends. >> his name and dr. michael dixon. >> hello, i'm dr. mike reporter: well known, he's divorced and wealthy. rashel and dr. dixon dated for a she broke up. >> he knew thafes dating jason. he called him by name in a series of text messages. he wanted me to come back to him. >> reporter: but is dixon the kind of man to take no for an answer? johnson wants to find out.

amarillo for a nversation with rashel's ex, that detective johnson secretly dr. dixon, i'm with the lubbock police department. >> his first thing was, oh, my, i don't know anything about talked to her in months and months. >> okay, well, that's a little accounted, because she told us that he knew about the i'll be honest with you, i love, love, loved that woman. >> for detective johnson, alarm bells were sounding. >> reporter: dixon seems like a likely suspect, but he has an alibi the night of sonar's there's something not right here, this is a huge whodunnit. until a witness comes forward with a name, dave shepherd, who soon confesses to the on the floor, not

i check his pulse in his neck. he's dead. >> reporter: he connection to dr. sonar, but with? dr. dixon. >> we just hit it off. >> it was an unlikely romance.ssful plastic surgeon, and shepherd, a divorced, con-man. >> he left his wife for her. you know, she broke upnd he just wanted, i guessing payback. >> reporter: that meant getting rid of the man she he wanted him hurt and then gradually ended up wanting him killed. >> reporter: police arrest dr. dixon for ordering the hit on dr. sonar. but who willieve, a respected plastic surgeon, or a con-man? in the first trial, shepherd reneged urn against his best friend.

reach a verdict. but at the second trial, one of the hitman's daughtersstand. >> we all asked him, how do you have money? and his words were, i did some work for mike and he paid me early.nk that was a prepayment for killing dr. sonar? >> in retrospect, absolutely. >> reporter: it takes a new jury only three hours >> the verdict is in. >> unanimous verdict. >> guilty on two charges. >> reporter: mike dixon is convicted on two counts of he's appealing the verdict. as for the woman at the center of it all, rashel shateena has a are real sociopaths and psychopaths that walk amongst us. they're charming. they sit at the dinner table with you and your children, and sometimes they sleep in your bed with

shateena has put mike dixon out of her mind, but says josephve a place in her heart. >> i'll always love him. i'm just -- tell him how sorry i for "nightline," i'm ryan smith in lubbock, texas. >> dixon's lawyers still maintain shepherd acted alone and that their client never ordered the hit on dr.they are appealing the verdict. up next, from "magic mike" to lip sync battles, channing tatum took the stage and beyonce party. so who had the fiercer performance? abc news "nightline" brought to you by pfizer. i was able to quit in three months.at was amazing. along with support, chantix (varenicline) is proven to help people quit smoking. it absolutely reduced my urge to smoke. some people had changes in behavior,hostility, agitation, depressed mood

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> it's basically hollywood's finest facing off. beyonce versus channing tatum. thanks to "magic mike," wening could dance, but how do his moves hold up when he's strutting next to sasha fierce? is no stranger to dancing in tight leather. but this is week's episode of lip sync battle, he brought the house down in a dress, with beyonce's "run the blowing bit. and in the moment no one saw coming, beyonce herself takes the stage showing him how. channing has no choice but to bow down to queen b. her cameo lasted less than a minute, but already has up to facebook

all part of the season 2 premiere of lip sync battle. >> break it down for us. what battle? >> it's very simple. two celebrities perform two different songs and lip sync to the best of theire audience decides who did it best. >> it's exciting and i think people just love to be somebody else for a few minutes. my husband john was on it. he's not a rapper, he was so excitedorking that m.c. hammer. >> he was working it. >> my favorite part, we taped it before, it was oscar winner john legend and now wenner john legend in hammer pants and glasses. told you home boys can't touch this >> it's social media too.

people upload videos of themt popular songs, like whitney houston's "i will always love you." >> i got it in with lionel richie's richie's "all night long." for "nightline," i'm rachelllywood. >> outstanding. thanks for watching. tune in to gma tomorrow and as always, we're online on ouracebook page and at