Please answer the following question: What key details about john stalker can be extracted from the following bio? Bio: john stalker -lrb- born 17 april 1939 -rrb- is a former deputy chief constable of greater manchester police , now residing in lymm . he headed the stalker inquiry that investigated the shooting of suspected members of the provisional irish republican army in 1982 . he has also had a television and literary career .
A:
- known for is the stalker inquiry television appearances- birth date is 17 april 1939- name is john stalker- birth place is manchester , england