certainly a reason for impairment when he crashed his plane in November.
https://sports.yahoo.com/autopsy-roy-halladay-morphine-body-deadly-plane-crash-214436113.html
Autopsy: Roy Halladay had morphine in his body during deadly plane crash
https://sports.yahoo.com/autopsy-roy-halladay-morphine-body-deadly-plane-crash-214436113.html
Autopsy: Roy Halladay had morphine in his body during deadly plane crash