Dr Richard Warn was shot to death by his two adult sons, Michael and Mark, who did not live at the home. Police had to force open the door after a call from Dr Warn’s wife, who was returning from a trip and had no keys. The police tracked the sons to the home their father had purchased for them at 4362 Elmwood Ave. in South Euclid. A SWAT team was finally able to gain entry, finding the sons dead in a double suicide. Testimony supports the fact that the sons were mentally ill.