He refused to listen to reason when Carter returned to the 25th century. Now calling himself Booster Gold claiming to be a hero in the past Carter said that he belonged in that era. All Broderick cared about was making sure the execution was carried out even if he had to be the one to do it. Thanks to the timely arrival of Rip Hunter, Jack Soo and Michelle Carter
he was denied. As the group escaped back in time he attempted to repair a Time Platform enough to follow. Once in the past Broderick was sickened by the waste of mankind and by the praise that, at the time, was given to Carter.
His form of "justice" was denied however when Carter leapt in to protect innocents and Brodericks' own cop instincts kicked in. Together the two foiled the robbery taking place. Carter offered him back his weapon when it was over giving him two options. Either to shoot him or accept his help in returning Broderick to his time. In the end he chose not to shoot but refused to beg his former foe for assistance thinking he would need to find his own way.
Where is he now?: After the first Booster Gold series nothing has been written about Broderick. Which is a shame. I think the ironic nature of his chase and Boosters' present state would be worth looking into.
First Appearance: Booster Gold #15 Vol. 1