Conversation so far:
When did William S. Burroughs' second wife Vollmer die?
09/06/1951
What details surround William S. Burroughs's second wife Vollmer's death?
Burroughs killed his second wife, Joan Vollmer, in 1951 in Mexico City

Question: Did he shoot him?
Self-contained rewrite: Did William S. Burroughs shoot his second wife, Joan Vollmer?