Conversation so far:
When was Jerry Garcia found?
On August 9, 1995, at 4:23 am, Jerry Garcia was found dead in his room at the rehabilitation clinic.
What time was Jerry Garcia found dead?
On August 9, 1995, at 4:23 am, Jerry Garcia was found dead in his room at the rehabilitation clinic.
Where was Jerry Garcia found dead at?
On August 9, 1995, at 4:23 am, Jerry Garcia was found dead in his room at the rehabilitation clinic.

Question: what was the cause of his death
Self-contained rewrite: what was the cause of Jerry Garcia's death?