liam mcatasney faced the judge again, his reality inescapable. manner, but-- keith morrison (voiceover): liam was sentenced to life without parole. he has filed an appeal. preston taylor was handed 18 years in prison for his role. defense attorney john peronne negotiated the plea agreement. keith morrison: how can he live with the fact that this girl he liked and was a friend of for years, who he took to the prom, for heaven's sake, he could participate? nobody could live with that fact. and he can't. he's going to relive his part for the rest of his life. keith morrison: what was this case all about when you see the totality of it? i think the money was an excuse and that he just wanted to kill somebody. to me, what the case was about, first and foremost, was just the way that he used sarah. keith morrison (voiceover): the consequences of sarah's death will be with a lot of people for a very long time, grief still very raw. no matter how many times something's, like, funny or, like, you have a good day, and then-- sorry. you would come home and