jumped up and jumped on top of me. i screamed, and then he muffled my scream with a gloved hand and put a knife to the side of my neck. >> reporter: the assailant brutally raped her. she said that she kept her eyes open throughout the attack, trying to memorize every identifying feature. >> maybe if he had an accent or a dialect that was different or if he had any unusual scars or tattoos or maybe he had lost a tooth or something that would be a feature that he couldn't alter later on. >> reporter: conton, who was also then 22 years old, was sentenced to life in prison. he never gave up his fight. and in dna technology he was responsible.. so much not

imperfectly responsible for a man losing matter how many times i said ias what i did. i couldn't give him back those years. >> jennifer thompson and ronald cotton's case is just a very powerful reminder of how not cu are even when we want them to be. their case just exemplifies a lot of the problems that happened in mr. jones's case ia very bad police line-up. they are very closely linked in the issues that they raise. >> reporter: jones and amos had never met until a hearing last wednesday, when witnesses admitted they couldn't tell the two apart and the judge ordered jones released. >> it made a lot of things understandable for me concerning this whole case because i just looked at how much me and this man looked alike and it was --

it was unbelievable. >> reporter: amos has denied any involvement with the crime he was never chargedh or found guilty of the robbery. though most anecdotes aboutally involve crime and psiidentity, mysterious phenomenon in which is fairly common. >> reporter: like matty eckhar. the pair are mistaken for twins but are complete strangers. >> reporter: folklore has it that we each have seven look-alikes out there in the world. dublin native nia gainey is working to prove that theory. she's already met three of her own doppelgangers. >> oh, my nia's become a doppelganger detective of sorts. >> these are all the filtered matches. >> reporter: co-founding the website twinstrangers.com to help others in their search. >> we have over a million people

registered at the website, and we have thousands of matches. >> reporter: as for richard jones the discovery of his doppelganger opened the door to his release. after nearly two decades jones has just begun rebuilding his life. >> i'm definitely built for the challenge, just living my life starting over, and just doing it right this time. >> reporter: for "nightline" i'm alex perez in chicago. up next, it's can versus beasts. the life and death reason behind this container cage fight. and later, katy perry chained to the rhythm. and the computer. calling off her feud with taylor swift in her 96-hour livestream. ♪ to the rhythm had a lot on m. my 30-year marriage... ...my 3-month old business... plus...what if this happened again? i was given warfarin in the hospital, but wondered, was this the best treatment for me? so i made a point to talk to my doctor.

he told me about eliquis. eliquis treats dvt and pe blood clots and reduces the risk of them happening again. not only does eliquis treat dvt and pe blood clots. eliquis also had significantly less major bleeding than the standard treatment. eliquis had both... ...and that turned around my thinking. don't stop eliquis unless your doctor tells you to. eliquis can cause serious and in rare cases fatal bleeding. don't take eliquis if you have an artificial heart valve or abnormal bleeding. if you had a spinal injection while on eliquis call your doctor right away if you have tingling, numbness, or muscle weakness. while taking eliquis, you may bruise more easily... and it may take longer than usual for bleeding to stop. seek immediate medical care for sudden signs of bleeding, like unusual bruising. eliquis may increase your bleeding risk if you take certain medicines. tell your doctor about all planned medical or dental procedures. eliquis treats dvt and pe blood clots. plus had less major bleeding. both made eliquis right for me. ask your doctor if switching to eliquis is right for you.

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if you're like me, you wouldn't dream of buying anything unless it could withstand a grizzly bear attack. that's just me. but how would you really know when something is bearproof? just ask abc's gloria riviera. >> reporter: in west yellowstone, montana the bears are boss. >> oh, man. >> reporter: breaking into these manmade products their singular goal. >> this bear has a nickname. >> buck the destroyer. >> reporter: it's not just play, it's their day job. >> she got in that first little bit and then started tearing apart on the styrofoam. >> reporter: these grizzlies are grizzled vets, testing products to certify as bear resistant before they hit the market. >> reporter: the mama bear and her two cubs were rummaging through a dumpster looking for food. >> reporter: bears getting too close for comfort happens all too often. the lure of an easy meal

tempting bears out of the wild and into breaking into houses like this one in colorado. ♪ but here at the curiosity asset. >> he's going for it. >> repzly, about 1,200 pounds p times that of a human.e these b ich regions of theof 700 pounds. u.s. and canada up to 1,700.the business 30 years. he's come from arizona to to th. >>o get into trash cans, they keep coming back.>> reporter: today' new 65-gallonk can. >> start to finish you know soholutely. made all the tooling ourselves, designed to change the product to become bear safe? >> this is the third generation.

>> reporter: years of work, roughly $250,000 in producing costs are on the line. >> some dried dog kibble. >> reporter: tone tice the bears to the can manager randy grabit fills the container. >> apple butter, hummckleberry jam. >> breakfast of the champions. >> they set the bait. >> quite often bears will drag objects in the pond. that's why we're doing it, so it does not go in the pond. animal, we are ready. >> reporter: and let the grizzlies have at it. >> look at it, he's using his claws. look at those claws. >> they have so much power in those claws, they can just rip right through plastic. >> that bear is 350 pounds. the container? >> 42 pounds. >> 42 pounds. >> reporter: to get that all-important bear-resistant certificate a product must withstand 60 minutes of bear contact. >> that's the rule. 60 minutes. >> reporter: and if you pass,

bearproof. >> you're done. >> reporter: you're done. okay. >> then you get a certificate. >> reporter: you get a certificate and your product on the market. >> that's right. >> reporter: round one is called. halfway there. >> it's holding up. >> reporter: it's holding up. >> it's still early. it ain't over till it's over. >> reporter: it ain't over till it's over. >> grizzly bears are truly opportunistic omnivores. their diet changes from day to day, from season to season, from year to year. >> reporter: the man who knows more than most, dr. frank van manon, a leading bear scientist devoted to these majestic animals for nearly 30 years. you have said that we might encounter what? >> a bison on the road. >> reporter: and what do we have in front of us? this guy does not look worried to see us. he's coming straight for us. look at him. that was amazing. >> reporter: here the grizzlies' natural habitat. but just outside modern-day development. >> on one hand you have the park over here. and then you can hear -- there's a semi truck just barreling down the road. >> reporter: that area has changed a little bit over the

last couple decades. >> armed with bear spray, we head to a clearing off the road. >> reporter: is it your civic responsibility to be bear wise? >> personally, yes, i would say so. most of these people don't want to see bears die because of getting into garbage. it only takes one house that doesn't have a bearproof garbage system, and that's all it takes for a bear to get in trouble. >> reporter: back at the center team hemmenway's getting ready to test five coolers. >> it doesn't seem that long, but when you're standing there watching it 60 minutes is a long time. >> reporter: two years of work went into today. >> this is kind of the end of the road for to us make sure we've done our homework. >> reporter: i head in with the team to set the cooler. >> i think this one is going to pass. >> reporter: spirit the bear has other ideas. >> oh, boy. here we go. >> okay. rip the top off. >> reporter: teeth and claws go right through the cooler. it leads to -- >> you never want to see failure, but you know, this is why we're doing it. it shows us where we need to make some directions.

>> reporter: inside the enclosure the cooler wasn't the only target. here's what remains of our gopro. oh, dear. the card's still going, and it's still filming. this has been inside a bear's mouth. she was able to just peel that right up. she didn't even have to bust through that second layer. >> yeah. i think i'm going to stop guessing on whether products are going to pass or fail. now it's cleanup time. >> yeah. how does what these bears do here in product testing, how does that test their brothers in the wild? >> if there's that cooler at the camping site and that bear doesn't get in, that bear's just going to continue on down stream or in the back country where they normally live and they're not going to get that food reward. >> you believe that will help bears in the wild because it will cut down on how much interaction there is. >> very much so. and keep people safe. >> reporter: the day's almost done. bill's kodiak can is just shy of 60 minutes. >> he's doing one of his compression tpr moves. >> what will it mean when that clock strikes 60 minutes and you're good? >> the anxiety will be over.

>> reporter: and later that day it passes. >> big step in the right direction today. >> absolutely. big step in the right direction. it saves bears and humans as well. >> reporter: for "nightline" i'm gloria riviera in west yellowstone, montana. up next, katy perry softening her roar. how she signaled an end to her feud with taylor swift during her 96-hour-long marathon broadcast. so, your new prescription does have oh, like what?ects. ♪ you're gonna have dizziness, nausea, and sweaty eyelids. ♪ ♪ and in certain cases chronic flatulence. ♪ no ♪ sooooo gassy girl. so gassy. if you're boyz ii men, you make anything sound good.

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and finally tonight, her fans might say there is no such thing as too much katy perry, but this weekend she got close.

♪ this weekend katy perry hoping to heal the bad blood between her and fellow pop star taylor swift. >> i forgive her, and i'm sorry for anything i ever did. >> that moment captured during the 96 hours of all katy all the time thanks to a 41-camera livestream promoting her newly released album "witness." >> this is my bare skin. >> reporter: it was a rare unfiltered marathon look at a high-wattage personality. the 32-year-old singer confronting the backlash she received for her music video "this is how we do." >> i see you. >> in my intention to admire a culture and appreciate, i actually appropriated. i actually made a mistake because i didn't educate myself. >> reporter: and even revealing her battle with depression in a live therapy session. >> it's hard because i feel ashamed that i would even like have those thoughts, you know, and feel that low or that depressed. >> okay. >> reporter: getting by with a little help from her famous

friends. >> because they're just like let it go. >> reporter: finding her zen with "modern family" star jesse tyler ferguson. >> we're just two happy babies. >> this is so fun. >> reporter: and sharpening her cooking skills with celebrity chef gordon ramsey. >> are you with me? >> no, i'm not with you, gordon ramsey. >> reporter: the live stream concluding today with a private concert for 1,000 of her luckiest fans. ♪ >> and as we say good night on this one-year anniversary, we look back on the pulse nightclub shooting. it was the deadliest mass shooting in modern american history that saw 49 lives lost. tonight you can see their faces and tributes throughout orlando as we remember all the victims and their families.

>> it's teacher appreciation week, and anyone who's ever won big money on "millionaire" knows the importance of a good education. well, this week, we're giving back to some of the amazing people who had dedicated their lives to providing that education by giving them a chance to win $1 million. so let's play "who wants to be a millionaire." [cheers and applause] [dramatic music] ♪ welcome to the show, everybody. it is teacher appreciation week here on "millionaire." [cheers and applause] this is a good week. today's very special teacher saved all 15 of her students during the tragedy at sandy hook back in 2012. after all the lives she's touched, i can't wait to give her a shot at winning $1 million. from greenwich, connecticut, please give it up for kaitlin roig-debellis.

[cheers and applause] hey. how you doing? >> nice to meet you. >> nice to meet you as well. [cheers and applause] ♪ [cheers and applause] >> [sighs] >> welcome to "millionaire." >> thank you. >> honored to have you. >> honored to be here. >> go back to 2012. you know, that day that i'm sure just started like any other and turned into such a tragedy. and you ended up saving, through your bravery-- um, and i know you don't like being called a hero-- but through your bravery, saved the lives of your students that day. >> angels, for sure. you know? i'm a teacher. my students are my responsibility. their safety, obviously, the most important one of my responsibilities, so i did what any teacher would have done. >> um... [cheers and applause] and since then... >> mm-hmm. >> i know you have been speaking and i know you have, probably, you know, been sought after and you have talked a lot--

what has life been like after? >> i founded a nonprofit called classes 4 classes that is based on teaching students k-8 in our country a social emotional intelligence; to be kind, compassionate, and empathetic. that's the most important lesson any student can learn. [cheers and applause] >> and... i love this week, because, you know, while you did, you know-- this is my opinion, don't be mad at me-- while you did something very heroic and very brave, at the end of the day, you're a teacher, and it's something you're very proud of, and that's what we're celebrating this week. so i'm glad you're here on their behalf as well, just being a teacher, and great at what you do. so thank you again for being here and hopefully, you're gonna walk out of here with $1 million. that would be fantastic. i don't think anybody would mind if you won the $1 million. [cheers and applause] let me tell you what you're up against, kaitlin. 14 questions--the money values growing from $500 all the way up to that $1 million. [cheers and applause] every question you answer correctly moves you one step closer to that top prize.

remember, at any time, you can walk away with the money you've earned up to that point. if you give me an incorrect answer, you walk away with nothing, until you get to those thresholds of $5,000, then again at $50,000. you also have your three lifelines; audience can help you out with a question, you have your "50/50," i take away two incorrect answers, and you brought a plus one today. who's with you? >> craig. >> hey, craig. >> how are you? >> how you doing? welcome. >> good. >> okay. are you ready to go? >> i am. [laughs] >> all right, again, honored to have you here. let's have some fun. let's get into your game, and let's play "who wants to be a millionaire." [dramatic musical flourish] ♪ we'll start with your $500 question. >> okay. >> which of these is not a french phrase referring to a witty saying, a sophisticated person, or a common farewell to a cruisegoer? >> [chuckles] um, "which of these is not a french phrase referring to a witty saying, a sophisticated person, or a common farewell

to a cruisegoer?" um... wait. "which of these is not a french phrase, a sophisticated person, or a common farewell?" d, bon jovi. >> bon jovi? is that your final? >> yes. >> bon jovi is right. [cheers and applause] >> it's a lot harder actually being here, than at home-- >> a-as a teacher, grade-- grade my french. how-- >> uh... >> terrible? >> no, good. >> horrible? >> no, good. very good. >> [laughs] all right, here's your $1,000 question. suggesting that teachers love summer break just as much as the kids, a novelty t-shirt reads "three reasons" to "love teaching" are what? >> d. final answer. >> [laughs] no doubt! >> that, though, is a legend; a rumor. 'cause teachers never have time off. >> right? exactly. what's summer? >> yeah.

>> $1,000 in the bank. $2,000 question. what chilly continent is arguably the most "international," as its population is 100% of people who are citizens of somewhere else? >> um... "what chilly continent is arguably the most 'international,' as its population is 100% of people who are citizens of somewhere else?" well, it ha--it has to be antarctica. >> is that your final? >> [chuckles] yeah, b. final. >> you got it right. >> this, like, makes you crazy. [cheers and applause] >> it's different under the lights. >> it's very different... >> yeah. >> under the lights, than on your couch. >> $2,000 is where you are right now. chance at $3,000 with this question. showing the apple doesn't fall far from the tree, what granddaughter of a famous italian fascist is herself a far-right politician in the european parliament?

>> it's not a or d. italian-- alessandra mussolini, b. final answer. >> that one you just whipped through. yeah. you got it. >> laughs] [cheers and applause] >> $3,000. next stop: $5,000. it's also that first threshold you can get to. >> okay. >> so here it is. what actress was apparently "pitch perfect" on broadway in the 1998 musical "high society" earning herself a tony nomination at the tender age of 12? >> well... i really think it's a, but i don't want to guess, and my audience today looks