Detailed Instructions: Generate a correct and concise answer for the question based on the words in the context.
Q: Context : Robert John Bardo (born January 2, 1970) is an American man serving life imprisonment without parole after being convicted in October 1991 for the murder of American actress Rebecca Schaeffer on July 18, 1989, whom he had stalked for three years beforehand.
Question : Which crime Robert John Bardo is considered to have commited?
A:
murder