The Canley River Murders was a case surrounding a serial killer in The Bill. The suspect was Patricia 'Pat' Kitson, the sister of Simon Kitson, a journalist in a relationship with PC Cass Rickman, who was the final of six victims. The storyline ran between Episode 024 and Episode 077. DC Duncan Lennox, who transferred to MIT during the investigation and Acting DI Samantha Nixon were at the center of the investigation.