Premise: "A Death in the Family" is a four-issue "Batman" comic book storyline published by DC Comics. The story was written by Jim Starlin and illustrated by Jim Aparo, while Mike Mignola designed each cover. The plot follows Jason Todd's quest to be reunited with his birth mother and Batman's subsequent attempts to stop the Joker's evil plans.
Hypothesis: "A Death in the Family" is a four-issue "Batman" comic book storyline not published by DC Comics.