Deranged Foxhole Deduction

A man crosses the precipice from sanity to insanity killing his roommate, then the roommate's long lost daughter and mother and another man. A detective is saved by the zombie bodies.A man crosses the precipice from sanity to insanity killing his roommate, then the roommate's long lost daughter and mother and another man. A detective is saved by the zombie bodies.A man crosses the precipice from sanity to insanity killing his roommate, then the roommate's long lost daughter and mother and another man. A detective is saved by the zombie bodies.