Lester and his partner Jackson were among the first responders to the City Hunter's attack on a Los Angeles subway train. When Detective Leona Cantrell was found alive and brought up to the surface, it was Lester and Jackson who tended to her, finder her suffering from severe shock but otherwise unharmed. When Jackson discovered she was in fact pregnant, the pair rushed her to hospital for further treatment.
Lester is not named in the film's credits and his name is never spoken on-screen, nor is he given a name in the film's novelisation. However, his name is visible embroidered on the right breast of his uniform.