Efren Saldivar

ABOUT EFREN SALDIVAR

Serial killer who murdered at least six people while working as a respiratory therapist.

He graduated from the College of Medical and Dental Careers in North Hollywood, CA.

He had an ethical code that determined his victims, and he killed by injecting patients with muscle relaxers or cutting off oxygen.

He wasn't married before being caught, and he lived with his parents until his arrest.

He called himself an "Angel of Death," which is how many people describe assisted suicide doctor Jack Kevorkian .