Detailed Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Problem:Context : Edme Castaing (1796 -- 6 December 1823) was a French physician and is thought to have been the first person to use morphine to commit murder.
Answer : murder
Solution:
For what crime was Edme Castaing prosecuted?