True. It is highly unlikely that sleep deprivation alone killed him. However, there were a few studies performed on animals where the test subjects died after

True. It is highly unlikely that sleep deprivation alone killed him. However, there were a few studies performed on animals where the test subjects died after 5-20 days of (complete) sleep deprivation. There does not seem to be a study about the long term effects on humans. So it might be possible to kill someone from sleep deprivation - it might just take a while. src: http://sleepjunkies.com/features/sleep-deprivation-and-torture-a-brief-history/ http://sleepjunkies.com/features/sleep-deprivation-and-tortu...