bloodred_robin:

He drives the bike into the alley and kicks the stand down, preparing himself mentally for what he'll find. He's been in town two weeks, and the killings have already started. He was hoping to see Mia, to talk to her before this got too far, but the fourth dead prostitute in as many weeks has pushed itself to the forefront of his priorities. Someone needed to understand why everything was happening the way it was, and, though he'd never admit it, Tim wants to talk to someone that will understand why he's going to kill the monster doing this when he finds him.

Someone who knows him has to be able to explain to Bruce and Dick why he broke their cardinal rule.

He steps off the bike, pulls a grappling gun from his utility belt, aiming it skyward. He fires, and the gas-powered line shoots straight up the side of the three-story building, catching itself on the the lip of the roof. He gives the line two good tugs, and finds it stable. The building he needs to get to is three blocks away, and crawling with reporters, police and gawkers, all wanting a piece of the story. His thoughts abruptly shift to someone else, and he forces them away, not wanting to follow the thoughts to their conclusion. He doesn't want to think of how he found The Artist's first victim, which is the same way he will find the current one.

He climbs the roof, thinking about each step in succession as he pulls himself upward, counting the steps so as not to think of how he's failed to save these women from a mad man. Each one is like a knife in his guts, and those are only the ones he knows of. Tim wonders how many more have been killed because he let this man escape him? 

Once he's on the rooftop, he begins his run toward the 8th Street Motel, leaping from rooftop to rooftop. This is not Gotham, not his city, but he respected Oliver Queen, Roy Harper, Connor Hawke and Mia Dearden. He still respects all of them, and this psycho came here to continue his work.

Red Robin will not let him finish it.