Dick Grayson his parents in order to extort money from the circus that employed them. After the tragic murder, Batman (Bruce Wayne) takes Dick in as his legal ward (retconned as an adopted son in some cases) and trains him to become his crime-fighting partner Robin. He is written by many authors as the first son of Batman. As well as being Batman's crime-fighting partner, Dick establishes himself as the leader of the Teen Titans, a team of teenage superheroes. As a young man, he retires as Robin and takes on his own superhero identity to assert his independence, becoming Nightwing. As
Team Titans survived this sudden erasure of the Team Titans from existence. After "Zero Hour", Mirage and Terra joined the Teen Titans and it is revealed that the two (and Deathwing) were from the present and inserted into the Team Titans by the Time Trapper, to try and stop Monarch's plan. Deathwing is revealed to not be a future version of Dick Grayson (his actual identity remains a mystery). Terra is implied to be the original Terra and finds the grave of the original Terra empty; in truth, she is a member of a race of underground humanoids, who stole Terra's body