Justice League: A Better World
Nightwing had feel in tight spots with Batman before, but after the Justice Lords formed Batman has been more focused on ending crime than ever. Richard is there to help coordinate the Batcave Team and keep and eye in his mentor. When he was Robin, he was a member of the team Teen Titans. Barbara Gordon and Dick Grayson had a daughter called Carrie Grayson.
[GM: Here I want to keep a list of important characters killed by the hero. If I forget some, please tell me.]
Player: Jorge Gabriel Rodriguez
DC HEROES RPG 3rd Edition p.164
DC Wikia entry