Q: 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.
Context : Roger Warren (born December 17, 1943) is a former miner who was convicted of nine counts of second-degree murder in connection to the September 18, 1992 Giant Mine bombings at Yellowknife, Northwest Territories, Canada.
Answer : murder
A:
For what crime was Roger Warren prosecuted?