Around 1997, Chase worked as a county sheriff in Texas. Towards the end of his career, he arrested a local highschool quarterback for the rape and murder of a cheerleader just before the state championships. This led to growing resentment from the townspeople apologists, who protested the man's innocence on the grounds that the woman had it coming. Chase was soon after voted out of office in a special election. Disgusted with Texas, he left for Oklahoma and vowed never to set foot in the state again.
During the viral outbreak, Claire Redfield's convoy found Chase in Oklahoma and accepted him as a member.