S1, E5: Debra discovers a victim of the Ice Truck Killer who is still alive, which gives LaGuerta and her homicide detectives their first chance to identify the notorious serial killer. While Dexter works on the case, Rita tells Dexter about a friend of hers whose fiancé disappeared while emigrating from Cuba by way of a coyote. When the fiancé turns up dead, Dexter decides to hunt down the killer.