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 : Gary Ray Bowles (born January 25, 1962) is an American serial killer who was sentenced to death for the murder of six men. 
Answer : murder
Which crime led to the conviction of Gary Ray Bowles?

Context : The Vetterli rifles were a series of Swiss army service rifles in use from 1869 to circa 1890, when they were replaced with Schmidt-- 
Answer : 1869
What year is Vetterli rifle associated with?

Context : Dick Pointer (before 1778 -- 1827) was an American frontier hero and an African slave. 
Answer : 1827

When was Dick Pointer's death?