His father was killed at his construction job during Chris' and Claire's childhood, with his mother dying in a car accident in 1995. Chris joined S.T.A.R.S. after a chance encounter with Barry Burton, who had served in the branch for fifteen years. Barry's senior position allowed him to recruit Chris into the unit.
During the 1998 cannibalistic homicides in the Arklay Mountains, Chris became obsessed over the case due to the disappearance of his friend, Billy.