He doesn't shoot Keller, but it's a close thing. There's no real reason to shoot Keller, to be honest, except that he dragged John on a chase through miles of slush and John is wet and freezing.

Also, there's the bit where Keller is a hit man, but honestly John is more inclined to shoot because of the other thing. He settles for the satisfying click of his handcuffs over Keller's wrists.

Once the police has arrived, John vanishes into a convenient alley and starts making his way back to the library. Almost as soon as he does, however, his earpiece crackles.

"Mr. Reese? You may want to come here, instead." Harold gives him an address, fairly close by.

Inside the safehouse, the warm air hits John like a pillow to the face. He blinks.

"There are clean clothes waiting for you." Harold is seated on the couch. He doesn't look up from the laptop. "And there is enough hot water for as long a shower as you want."

John stumbles towards the shower. He pauses at the door long enough to say, "Thank you," heartfelt.

Harold does look at him then, over the tops of his glasses. "I suppose it's the least I could do since you refrained from shooting Mr. Keller."