there weren't any recent calls, or texts, or anything like that the theory would've been that justin hansen> reporter: but there's little actual evidence to support that theory. and when detective gonterman calls brittani's best friend from 2008 justine baca, she's never heard of hansen. >> i have no idea who that is. >> okay, and she never mentioned the name justin? >> mm-mm. our names are so similar, it always sticks in my head when i meet somebody that knows a justin. >> she's like, "i've never met this guy. if brittani was hanging out with him she wasn't telling me about it." >> reporter: justin's mom says the reason for that is because her son never stalked brittani and isn't the person who attacked her. >> if somebody has that kind of violence in them, you know, you'd think if they can go a whole decade and it not come out again, i don't think so. >> justin was staying out of trouble. he knew that if he got arrested and his dna was going to get in the database, that he was going to get caught for this. >> reporter: so what about that dna evidence that seemingly puts hansen at the marc

it was justin hansen's photo. and she put "match" on it. >> reporter: detectives now have enough evidence to arrest justin. detective gaunterman is at the station to meet hansen. she tells him he's facing a laundry list of charges, including attempted first-degree murder. and he's looking at the possibility of more than 50 years behind bars. and she has something else to say. >> you did this to her. >> i didn't do it. >> you did this to her. >> i didn't do that. >> you can deny it all you want, i know it's you now. >> reporter: what eludes prosecutors is a clear motive. the closest they could come up with is that justin's number was found stored on britney's phone. >> even though there weren't any recent calls or texts or anything like that, the theory would have been that justin hansen was essentially stalking britney, even if nobody really knew it. >> reporter: there's no actual evidence to support that theory. justin's mother, doreen shoemaker, is adamant that her son is innocent. what do you make of that one dr

i opened it up and it was justin hansen's photo and she put match jumped up. rested and charged but denies involvement. >> you did this to her. >> i didn't do that to her. >> reporter: today brittany and her mom are convinced it is him. >> memory is really fluid. are you certain it's him? >> i'm 100% positive it's him. >> coming up tonight on "20/20" we'll hear about the other evidence or lack of evidence that justin hansen says proves he did not do it including fingerprints and other dna found at the scene. investigators say simply cannot be his. we'll also hear from justin hansen himself. >> and brittany's mother said she saw the attacker so was she able to identify him? >> she came home, saw the attacker wielding that shovel, saved her daughter's life, but when she was presented with a photo lineup of the possible assailants, she could not pick hansen out of that lineup. >> wow. >> totally misdescribed him. >> but through hypnosis, the daughter was able. >> she did come up with the right name of the person on that drop of blood. >> wow. >> but they can't act

ally of he again attacked and i made him promise to justin trudeau and to think no one can take advantage of the u.s. on trade out as there is alan hansen all. as he was making friends with this enemy in singapore u.s. president donald trump also talked about making enemies of his friends the fallout from the g. seven summit in canada has followed him here but the president insists his goal is feed or treat the united states because of bad management and because of presidents that didn't care about trade or didn't understand it or whatever reason for many years with china being obviously the most successful at it but the european union the second one hundred fifty one billion we lost they were represented at the meeting and we're being taken advantage of on tray one economics expert says any trade dispute creates problems for everyone the demolition are usually opposition down as i said at the beginning trade is something that benefit over all. times and that it has been a benefit to all around the well so far the president also talked about that viral photo the one where other g seven leaders seem to be confronting him over his positio