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.
Q: Context : Cleophus Prince Jr. (born July 24, 1967 , aka ''The Clairemont Killer'') is an American serial killer who was convicted and sentenced to death in 1993 for the rape and murder of six women in San Diego County, California from January through September 1990.
Answer : murder
A:
Which crime Cleophus Prince Jr. is considered to have commited?