6x05: Map to Murder
6x04: Prince of Darkness
6x03: Red Light Regular
6x02: Cape Cod Casanova
6x01: Sex Slave Killers
5x12: The Sunset Slayers
5x11: The Psychopath
5x10: The Speed Freaks
5x09: The Gravedigger
5x08: The Dark Marksmen
5x07: The Hitch Hike Hunter
5x06: The Black Panther
5x05: The Killer Prophet
5x02: The Blood Brothers
5x01: The Other Brother
4x06: The Deadly Duo
4x05: Twisted Fantasies
4x04: The Gay Slayer
4x03: Angel of Death