>> reporter: serrano never flinched. the families' gasps were silent but the relief was visible. in the end, jurors say they didn't buy the defense argument that serrano couldn't have had enough time to travel and commit the crime all inside ten hours. >> there was plenty of time to do what he wanted to do. >> reporter: the other thing critical to their conviction, serrano's fingerprint. >> his alibi was shot with that fingerprint on the parking ticket. >> reporter: outside the courtroom, it was as though the families were finally able to have the wake they had been denied all these years. the dossos, who lost their son, frank, and their daughter, diane. >> now he's suffering for what what he did to my kids. he took everything away from me. >> reporter: the patissos, who lost their son, george. >> nine years but we got him. >> reporter: and the grieving widow of the partner in the business, george gonsalves. and then there was maria and her three girls. they lost their father on, of all days, the twins' birthday.