They show up just as Wally is about to kill five-days-older-Wally, and five-days Wally reveals that after he accidentally killed everyone in Sanctuary, he didn't travel back in time to “unmake” his mistake because that's what Barry did during Flashpoint, instead he sent the confession files to Lois Lane to try to “make up for what happened,” telling the world what he'd done at Sanctuary, and encouraging people to get help before they made the same mistakes he did. Five-days Wally reveals that this is the same thing that happened to him five days ago - that he also didn't kill the older Wally. Booster Gold explains that they can still “close” the loop, even without the dead body of five-days-old Wally. They can go to the 25th Century and “speed-clone” older Wally. Then younger Wally can take that cloned body back to the past. The Justice League eventually arrived and arrested Wally for the murders.