Ken Burton is the husband of Maggie Burton, who turned out to be a PDS Sufferer. Bill Macy found out she was partially deceased, and killed her in front of Ken. Ultimately leading Ken to murder Bill out of revenge and grief.
Ken was killed with his nephew on a tram in Lancashire when a group of Undead Extremists performed a terrorist attack.
After moving away from Roarton, Ken Burton and his nephew, and some disguised PDS sufferers are seen boarding a tram simultaneously. As the tram starts, Ken and the other passengers witness the PDS sufferers taking Blue Oblivion, after making a statement, turning them rabid and attacking and killing the passengers on board.