Fan CastingDC’s Tales From The Dark Multiverse Episode 3:

Bruce Wayne was born to billionaire doctor Thomas Wayne and his wife Martha Kane. His version of reality was known as Earth -32 and was located within the Dark Multiverse, a mirror of the normal Multiverse where all the realities were destined to die. One evening when the young Bruce and his parents were walking down an alleyway, they were set upon by a mugger named Joe Chill. During the confrontation Bruce's parents were shot and killed by Chill who subsequently fled the scene. At that moment Bruce was left as a void, as all emotions left him including fear. A nearby Green Lantern Ring eventually found Wayne and inducted him into the Green Lantern Corps. Bruce didn't think anything of the ring, all he recognized was a tool which could be used to kill his parent's murderer.