this guy's mental state at that point was just gone. >> reporter: it was september 2016, eight years after the first of four omaha killings when dr. anthony garcia finally got his day in court. on hand to see it were the victims' families who'd waited the longest. >> my main thing is i needed to see the man who did it and determine for myself if he did it. coming up, the trial begins with a lucky break. >> all of a sudden you get handed the murder weapon. >> yeah, that was a gift. >> and a bombshell witness, a former stripper with a revealing story. >> she said i only date bad boys. >> and i said, well, i'm a bad boy.