Derrick Duggan is one of the psychopath in the video game; Dead Rising 2 who appears in the unmarked mission Militia Men. He is a member of a group of Hunters bent on killing survivors and zombies alike.
Dead Rising 2
Derrick and his hunting pals murder an innocent man that was wandering in Fortune Park. He and his friends go on about how they believe the zombies and survivors are communists sent to destroy democracy. They are determined to cleanse America of these "traitors", one city at a time.
Derrick is found on the roof of the Atlantica Casino that can only be accessed from a room near the indoor underground access north of the casino.