Given the task definition and input, reply with output. 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 : Ronnie Lee Gardner (January 16, 1961 -- June 18, 2010) was an American criminal who received the death penalty for murder in 1985, and was executed by a firing squad by the state of Utah in 2010.
Answer : murder
Which crime led to the conviction of Ronnie Lee Gardner?