In the late 1960s, Sobel shot himself in the head with a small-caliber pistol. The bullet entered his left temple, passed behind his eyes, and exited out the other side of his head. This severed his optic nerves and left him blind. He was later moved to a VA assisted living facility in Waukegan, Illinois Sobel resided there for his last seventeen years until his death due to malnutrition on September 30,