investigators believe she was garguilo's first victim.ntil 2011 when two witnesses came forward after watching a "48 hours" mystery report on the case. within a few weeks, garguilo was indicted. his attorneys say he's not guilty of killing anyone. the family had never met the two witnesses who blew open the case until they all came to l.a. to testify. >> i think it was very noble, what you did. >> heroes, right? >> yes. >> reporter: but they must wait for the trial here in l.a. to end before garguilo can be brought back to stand trial for their daughter's death. >> fighting for this case goes on with me forever, and that's the way it's going to be. >> reporter: having sat through testimony in this trial, i can tell you that most of it has been gut wrenching and grueling, but ashton kutcher, the witness who seems to have garnered the most amount of attention, will only be on the stand for just a few minutes. >> maureen, thank you very much. this is a story you've been following. >> i've been watching it a long time. ashton, it seems, plays