<Li> The reason given for Chill leaving Bruce alive has varied . Sometimes it was because Chill could not bring himself to kill a child or just only wanted / needed to kill Thomas and Martha . Sometimes it was because Chill heard a policeman's whistle, police siren, or a rapidly approaching policeman . Often, it is because of the cold, frightening look that Bruce gave Chill as he kneels beside his dead parents; Chill panics and runs away . In the version presented in The Untold Legend of the Batman, Batman theorizes that Chill, a hitman hired by gangster Lew Moxon, deliberately left Bruce alive to report that his parents were killed by a robber . In Batman: The Brave and the Bold episode "Chill of the Night!", a dying Moxon says that he only intended for Thomas to die, and even expressed regret over the death of Martha, especially as it left Bruce an orphan . </Li> <Li> An original script draft of the 1989 film Batman had Rupert Thorne hire Chill to assassinate Thomas and Martha Wayne, because he was running for mayor against Thomas Wayne . </Li> <Li> The movie that the Waynes went to see has fluctuated between the 1920 version of The Mark of Zorro starring Douglas Fairbanks and the 1940 version starring Tyrone Power and Basil Rathbone . A third version has starred "Tyrone Fairbanks". Tim Burton's Batman has the Waynes leaving The Monarch Theatre having seen Footlight Frenzy . Batman Begins has the Waynes leaving an opera house showing Mefistofele at the time of the murder, which they leave early due to Bruce being frightened by the bat - like costumes, giving Bruce the additional guilt of leading his parents to Chill . In The Dark Knight's Visual Guide it says that Bruce would rather have seen The Mark of Zorro at a movie house . </Li> <P> Batman #430 includes a scene in which Thomas Wayne was having trouble with some investments, and is going to sell short . Bruce thinks that he needs some exercise to take his mind off of it and so offers to play catch with him, but Thomas angrily says no, striking him across the face . A hurt and resentful Bruce declares to his mother that he wishes Thomas were dead . Thomas takes the family to a movie to make it up to his son, and in an ironic twist of fate, Bruce's parents would be murdered that night; Bruce is haunted with guilt for years afterward . </P>

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