Complex sentence: Young died in his cell at Parkhurst prison at the age of 42 in 1990, the official cause of death was listed as a a heart attack but there is some conjecture that fellow prisoners were the culprits.
Split into simpler sentences: Young died in his cell at Parkhurst prison at the age of 42 in 1990. The official cause of death was listed as a a heart attack, but there is some conjecture that fellow prisoners were the culprits.