Burglar 1 (Sleeper)

A burglar and his accomplice robbed the house of Beth Halloran and Mike Lyndon. His accomplice was slaughtered by Beth, who was actually Kayehla Janees, a member of the alien sleeper cell Cell 114. Terrified, he jumped out of the window to escape her and landed on a parked car below. Though he survived, he was badly injured and taken to the Cardiff Royal Infirmary where he soon died. Jack Harkness and Gwen Cooper heard him trying to get away from Kayehla Janees, making it clear she was the murderer. (TV: Sleeper)