In 1984, rising actor Jon-Erik Hexum was filming the TV series Cover Up when a tragic accident claimed his life. During a delay on set, Hexum jokingly placed a .44 Magnum revolver loaded with blanks to his head and pulled the trigger. Though blanks lack bullets, they still release a powerful gas blast. The force at such close range fractured his skull and sent bone fragments into his brain. He was rushed to the hospital but never regained consciousness. Hexum was declared brain-dead six days lat