Detective Comics #966

A LONELY PLACE OF LIVING CHAPTER 2
In Gotham City, "many tomorrows from now", Batman (Tim Drake) is in chase of Anarky. It looks like he's trying to extort some kind of information from Anarky about the location of a female character, but as Lonnie refuses to help, Tim kills him in cold blod with a gunshot to the head. The GCPD arrives on the scene, ordering Batman to surrender: he flies away.  Back to his Bat-cave, Tim accesses a message from Superman on the Bat-computer, deleting it as soon as Kon-El touches on Tim's self-inflicted solitude. While he's watching a dialogue where Spoiler talks about his change of character, he's suddenly teleported to Mr. Oz's Prison.  That was a year ago. Now, Red Robin (Prime Earth's present Tim Drake) and the Batman of Titans Tomorrow are fighting Doomsday. Batman manages to overcome the beast momentarily with shotguns of synthetic kryptonite, but he know it will recover soon. As they have a little time to talk, Batman explains to Red Robin that with his intellect he's always prepared to defeat any known menace. Batman has been trapped in Oz's prison for a year now, but this may be the time they'd been waiting for to escape: they'll have to mimic and redirect the frequency Oz used to leave that place and channel it through the Titans' boom teleport system installed in Batman's suit.  While fending off Doomsday, the two Tims talk about becoming Batman (which is a future Red Robin doesn't see himself in) and how every other member of the Bat-family, in the Titans Tomorrow timeline, has failed wearing the cape. Tim even supposedly killed his world's Damian, because he was "burning Gotham to the ground". Batwoman in particular seems to have done some irreparable damage. The Tims eventually get into a fight, with Batman explaining to Red Robin that some future events are written and there's no possibility to change them.  Finally, after sealing away Doomsday once again, the Drakes teleport back to Gotham City, but something seems off to future-Batman. Red Robin's reality is not the one he thought, although very similar in many aspects. That also means, he realizes, that the future is not necessarily written and he can change the course of events that led him to become the merciless Batman he is.  After neutralizing Red Robin with a paralytic shock, future Tim Drake sets off to kill Batwoman, the "responsible for the Fall of the Batmen".