Conversation so far:
When did Steve Irwin die?
Steve Irwin died on  September 4 2006.
How did Steve Irwin die?
Irwin died after being pierced in the chest by a stingray barb.
Where was Steve Irwin when the sting ray struck?
He was filming in Australia's Great Barrier Reef.

Question: was he shooting a documentary at the time it happened?
Self-contained rewrite: was Steve Irwin shooting a documentary at the time of his death?