You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.
Q: Context : Henry Colin Campbell (died April 18, 1930), aka The Torch Murderer, was executed by the State of New Jersey for the murder of Mildred Mowry, whom he met through a personal ad placed with a ''matrimonial agency.''
Subject : Henry Colin Campbell
Relation : convicted of
A:
Which crime Henry Colin Campbell is considered to have commited?