Booster Gold

Booster Gold (Michael Jon Carter) is a fictional superhero appearing in American comic books published by DC Comics. He was created by Dan Jurgens. The character first appeared in "Booster Gold" #1 (February 1986). He is a member of the Justice League.
He is known for his knowledge of historical events and future technology to use as his superpower. Over the course of his publication history and through personal tragedies, he becomes a true hero weighed down by the bad things he did in the past.