Batman: In Darkest Knight (1994) #1 Elseworlds

This time he had the most powerful weapon in the universe - a Green Lantern ring - to find the killer of his parents. This time there was no Joker - unless you count the evil alien with a maniacal bent. This time he was a hero alone. Who knows what legends he would inspire? From the creators of Batman: Son Of The Demon, a frightening look at a world that might of been.