morning in the rape trial of a former prep school student. his defense called one witness, the accused. he admitted he lied when he boasted he had sex with a 15-year-old. abc's gio benitez reports from new hampshire. >> reporter: a 19-year-old accused of rape, taking the stand today. his 16-year-old alleged victim watching in the front row. >> my name is owen labrie. >> reporter: their encounter, a so-called senior salute where a graduating senior at their elite prep school spends time with a younger student. la bri saying he was fond of his accuser. he described the night they went up to that empty room in the science building. >> she giggled, i giggled. we kissed like a little bit. >> reporter: labrie says the situation grew more intimate. his attorney asking over and over again if she ever objected. >> did she say anything? >> no. >> did she do anything? >> no, she didn't. >> reporter: he says they rolled around on a blanket, spoke to each other in french. but la bri says he suddenly had a change of heart.

>> i thought to myself maybe we shouldn't do this. it hadn't been my intention going into the night to have sex. >> reporter: but in cross-examination the prosecutor unconvinced. >> we kissed some more afterwards but i didn't have sex with her. >> reporter: labrie admitted bragging to friends that he did have sex with the girl, saying in one facebook message, he used every trick in the book. >> it was a joke but today it's a lie, right? >> um, yes, it is a lie. you know, i wanted to boast to my friends afterwards. >> reporter: at one point, the alleged victim walked out of the courtroom clearly upset. the defense attorney says he's pleased that the jury got to see the real owen labrie, george. >> thanks. >> the caribbean is bracing for tropical storm erika near puerto rico and the virgin islands today. schools, airports and casinos are closing and shelters are being prepared.

it is expected to bring much needed rain to parts of the drought ridden caribbean. at this point it could hit florida on monday. president obama travels to new orleans today joining those marking the ten-year anniversary of hurricane katrina. the president will tour neighborhoods and meet with residents. former president george bush who said flying over new orleans after katrina was one of the biggest mistakes of his presidency also also visit. now time to visit the florida keys where frankly, plenty of weird stuff goes on. >> i love the keys. >> well, a lot of it goes on in the water. case in point, an underwater wedding >> yeah, this is kimberly and jorge tying the knot the other day right beside this statue of jesus christ. this is called the christ of the deep. it's a statue. the big event was held to mark the 50th anniversary of its installation. >> you got to admit that's a little weird. that statue though, it's been down there about 25 feet off of

key largo, been there since august of 1965. we do say good luck to the bride and groom. let's hope their marriage lasts a half a century, as well. >> that's an interesting wedding to have. >> people have weddings all sorts of places. >> they have more fun down in key west. >> one way to look at it. coming up, the fashion trend for hipster men. does your guy have what it takes to rock a jumpsuit? >> also ahead, hope for couples who want to be parents. why women who thought they could never conceive are getting encouragement from doctors. later workout routines of the past worth revisiting today. we're working up a sweat on this throwback thursday after a look at our forecast. you're watching "world news now." "world news now" weather, brought to you by united health care. i'm only in my 60's. i've got a nice long life ahead. big plans. so when i found out medicare doesn't pay all my medical expenses, i looked at my options. then i got a medicare supplement insurance plan.

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another worker was seriously injured. it's unknown whether the two roofing installers were wearing larnesses or other safety gear. an investigation is under way. the celebration over the recent birth of pan dan twins at the national zoo has turned to sadness. the smaller twin has died. that's the one that mom may jing was neglecting. school workers tried to fill the void. vets pushed oxygen into the incubator and gave the cub antibiotics. but the efforts save. the surviving cub does appear to be strong. >> everyone was rooting for them. so hard for twin panda cubs to make it through. there's new hope for women who have trouble getting pregnant. >> a potential break through in treating one of the most common causes of infertility. here's deborah roberts. >> reporter: it's a mysterious disease and one of the leading causes polycystic ovary syndrome

can be difficult to diagnosis let alone treat. >> it's shockingly underdiagnosed because of lack of awareness in the medical community. >> reporter: symptoms include irregular periods, excess hair on the face, weight gain and diabetes. caused in part bibi high levels of testosterone. now, new hope for those who is suffer. an exciting genome mick discovery. >> we found genes that suggest that maybe the cause is the pituitary hormones that regulate ovulation as well as the receipt forces tore foes this ovaries. >> reporter: clues that will hopefully lead to a cure for women like linda. >> you think you're going crazy but the hormones are going crazy and you're okay. >> she's been struggle you ling for 20 years, a thin woman till age 27 when she suddenly gained 50 pounds in just six months. >> it was a huge surprise. i knew something was going

wrong. i knew if. and i kept going to doctors. >> reporter: it took ten years and two surgeries before a new doctor finally figured out gail had pcos and when she wanted a baby, she had trouble getting pregnant. >> hel will to go through doctors and levels antoine rounds of ivf before we had our first one. >> reporter: but hers is a success story. gail's health is under control and with a little help from a fer at the time doctor, she has a family and has an important piece of advice for others. >> don't give up. >> reporter: deborah roberts, abc news, new york. >> and they say the cause is not fully understood. it might be inherited but so much heart break for women trying to get pregnant and don't know why. so. >> glad to see there's hope though. we'll be right back.

♪ staying in shape can be hard work, which is why keeping fitness fun has always been important. >> but what happens when the workout was made entirely into a game with nostalgia inducing pop quizes mixed with our favorite childhood activities. nick question batiste finds out. >> imagine rocking out to '80s

music and hurling it nerve balls all while toning your tummy. that can happen here at throwback fitness. a 45-minute gym class inspired workout and a rebirth of your youth. a throwback to the playground, the class combines dodgeball and capture the flag with burpees squats and situps during phases called phys ed and recess. >> where will i be crying for help? >> phys ed is the more difficult part of the class and recess will be pretty much as it sounds. >> i love phys ed and resees. so i'm in. i love your jut fit. you look like the gym teacher. >> this is exactly what i'm going for. >> reporter: brian gallagher and ryan wilky ditched their wall street jobs to start this phenomenon. their idea, have so much fun you forget you're even working out. >> we try to distract you from the fact you're working out by using games. >> reporter: there's even a nod to the college dorm days,

fitness mez via flip cup. >> how does it become a workout? >> a race to do exercises against another team in the same formation that you play the game flip cup. >> reporter: no alcohol. >> no alcohol. have done flip cup with alcohol before and we have a beer pong workout too. >> this is good for a late night audience. the warmup involves high school hip-hop trivia. >> i'm going to play a song. guess if it came out in the '90s osh the towels. >> '90s. >> guess wrong and you're punished. next, your partnered up for 16 minutes of met tax blix revving physician ed. >> i want to be partnered with someone awesome so they i could win and they said it was you. >> i'm very competitive. >> reporter: you have to be to survive it. >> never rowed before. great for the body. there's a healthy dose of competition. >> you guys are five meters apart. five meters part.

>> reporter: flash back to elementary cool. recess comes next. now we're in teams named after our favorite childhood rapper. >> ll cool j. >> reporter: during this world cup inspired game, we're firing the naturally ninja turtle balls but only after earning your spot. >> how did i do? >> you did awesome. form looked great. i think you scored a goal or two. >> reporter: i did. i was going for the bounce. nothing like killing calories with some cow a bunk gaing. >> loved it. be back. nikki battiste, abc news, new york. >> naturally. >> i want to know the flip cup thing. did they use beer for that? >> i was about ready to explain the real deal flip cup. this is a different version. look at that. >> i just do my thigh master and my leg warmers and i do two minutes and i go back to eating a pop tart. >> perhaps some duck duck goose. remember that game? >> that was fun. >> that that's a physical game

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♪ last week, it was all about the man bun. this morning, we're bringing you another trend in men's style. the jumpsuit. >> for women, they're all the rage right now. right? but does it work for us guys? that's the question. abc's abbie boudreau explores. >> reporter: it's an instagram fashion trend ripped from the runway. jumpsuits for men. some calling them so chic and awesome. even even bravo's andy cohen loving his one piece. >> thanks, guys. >> reporter: jonathan squou designer of mr. turk says it's one of his best sellers. >> how does it feel? >> it's great. feels comfortable. >> i did think people would wear them. everyone (laughed at me. >> reporter: no longer just for

mechanics, bee keepers or race car drivers, this '70s inspired look may now be inspiring the modern day man. >> if you can look great and have it be six, that is kind of a selling point. >> reporter: from the classic khaki. what do you wear under that? to the poolside rocher short set and this holiday inn speiered elvis presley number. >> reporter: this is fun. we asked our own model anthony to ditch his clothes for a jumpsuit and hit the streets for real life reaction into no. >> i wouldn't wear it. i'm more of a loose clothes kind of guy. >> i think it's awesome. i really like it. >> if you got a bigger size. >> reporter: is this instagram a hit or nothing more than a fading fad? >> i do notny a romper looks good on a guy. >> reporter: editor-in-chief of yahoo! style warning men not to jump in on a jumpsuit craze too quickly. would you want the men in your life to be wearing this? >> reporter: that's a good question. that is a good question.

anyway -- >> some things are better off for the ladies. >> reporter: but squou says he would rather leave it to the guys to decide. >> reporter: you're having fun with it. >> it's fashion. it's fun. that's the whole point of fashion. right? abbie boudreau, los angeles. >> the one thing is you can't have a dad bod and rock a jumpsuit. >> it's a onesie. it's a onesie. i don't know, i could never do that. >> oh, yes you can. fresh off runway here the an "world news now." >> look, that may look kind of cool. here's where we run into a problem. ming in a public restroom would be embarrassing. you're going to look like a 4-year-old having to drop trou all the way to the ground. never going to do that for one reason. never be able to save face. >> that's the news for this half hour. he's never wearing a jumpsuit.

this morning on "world news now," murdered on live television. >> the tv reporter and cameraman shot and killed. the unspeakable scenes playing out on tv and social media. and the grief at a virginia tv station. >> also the subject's manifesto faxed here to abc news. what was going on in his mind before shooting former co-workers before taking his own life? we're live in virginia. also ahead, trump's tirade. the demands for apologies after the confrontation with univision anchorman jorge ramos. the political spectacle. >> later confronting cyberbullies. could hateful online message be stopped with a smartphone app. it's the invention of a techie nerd you just have to see. it's thursday, august 27th. from abc news, this is