Guilty — Norah McClintock

Finn watches in horror as his stepmother is gunned down in front of his house. His father reacts and kills the gunman. When Finn learns that the killer is the same man who admitted to killing his birth mother years before, he is shocked and wants to know if this is more than a terrible coincidence. At the police station, he meets Lila, daughter of the killer, and they strike up a wary friendship. Both of them are desperate to find the truth. What they discover hints at a much larger conspiracy.