Dr. Faustus

Dr. Faustus is a deranged plastic surgeon from Los Angeles, California, who intentionally disfigured many of his patients. He is armed with a scalpel and has a set of metal "jaws" attached to his own face that resembles a bear trap, which he also uses to attack with. He died from an infection caused by the grafting of said contraption onto his face. His ending shows him murdering one of his patients.