(Covers information from the S.D. Perry novels)
John Wersbowski was a mercenary within the Umbrella Biohazard Countermeasure Service.
Some time prior to 1998, John became infamous for taking part in an ethnic cleansing. He later joined the UBCS, becoming part of Sgt. Nicholai Ginovaef's squad in Platoon Delta. During the mission into Raccoon City, John was shot and killed by Nicholai.
- Perry, Nemesis, Chapter Two.