that video shows garrett phillips skateboarding past nick hillary's parked car at the potsdam high school. moments after garrett passes, nick pulls out. >> did you see garrett skateboard by? >> no, i didn't. >> obviously surveillance tape shows that he did, to go home. >> exactly, exactly. >> that's a pretty extraordinary convince den. >> very much so. >> given what happens. >> yes. but watch carefully. instead of turning right to go straight home, hillary turns left. prosecutors say he's following garrett on his way to commit murder. why would you turn left? >> when i made a left, my intentions were to get to the office. and i quickly realize i need to make provisions for my daughter at home. >> reporter: but that's not what his defense attorney argues during the trial. he says hillary turned left to visit his assistant coach. >> the inference you can draw from nick making the left fielding's house. >> this case was primarily based on surveillance video, potential motive, and his own arguably inconsistent statements. there's no hard evidence. like dna, fingerprints. >> reporter: in closi

and prosecutors say that's nick's car following garrett on his skateboard, riding out of his school's parking lot minutes before his murder -- (6.5 secs) but nick says he didn't see garrett and was simply there to scout a soccer game but left at half time because it was raining. william fitzpatrick i don't believe that nick hillary was in that parking lot by coincidence. he was hunting garrett. district attorney bill fitzpatrick argues nick strangled garrett in his mother's ber out this back window to escape. elizabeth vargas: so no fingerprints, no dna, no hairs, no fibers. really nothing? chief murray: and -his defense says- he has an alibi and no motive. earl ward you killed the poor kid with the hope that the mother would come running back into your arms? it makes absolutely no sense. during his closing argument, defense attorney earl ward repeats "reasonable doubt" 25 person that would walk into a room, put his hands around the child's neck and kill a child. after the verdict, one family distraught, one family relieved. nats: nick celebrating with lawyers elizabeth vargas: it's b

but i have to put my kids that's nick's car following garrett on his skateboard. riding out of his school parking lot minutes before his murder. nick says he didn't see garrett. he was there to scout a soccer game and left at half time because it was raining. >> i don't believe that nick hillary was in the parking lot by coincidence. he was hunting garrett. >> reporter: the district attorney argues nick strangled garrett in his mother's bedroom and jumped out the window to escape. really nothing. >> right. >> reporter: police found no dna, nothing to prove hillary was there. and his defense says he has an al biand no motive. >> you killed the poor kid with the hope that the mother will come running back into your arms? it makes absolutely no sense. >> reporter: during his closing argument, defense attorney repeats reasonable doubt 25 times. >> he's not that would walk into a room, put his hands around a child's neck, and kill a child. >> reporter: after the verdict, one family distraught. one family relieved. it's been a long five years. >> it has. not just for mys