Joseph Chilton, more known as Joe Chill, was a small-time criminal who murdered Martha Kane and Thomas Wayne during a mugging in Crime Alley, making him responsible for the creation of Batman. His position in continuity has changed many times over the years, having seen him commit the murder alone, act on orders of mob boss Lew Moxon, and not commit the murder at all.
Joe Chill was created by Bill Finger, Gardner Fox and Bob Kane, first appearing in Detective Comics #33 (1939).
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