Power Trip is the ninth episode of Season 7 of CSI: Miami.
A corpse showing similar wounds to a prior homicide brings an overzealous detective into contact with the team. But is he more than just a cop with a grudge?
The killer turned out to be one of the victims, who survived, fiancée. The cop who was involved in a previous case, killed a girl so the case would be closed, and blame the murder on the doctor, he thought who killed the victims