"Yeah, well..." He scrubs his hands over his face, trying to keep it together. "We find him, maybe whatever Time Lord senses you've got can lead you, and I put a round of bullets in him. Problem is, we'd better figure out why he came back from the last time he was shot and cremated, so he doesn't come back again."
He's really more feeling the need for comfort than comforting, but he gives the Doctor a shoulder bump. "Look, you and me, gotta stop trying to take on responsibility for what other people do. Maybe motivated by wanting to hurt you, yeah, but it's still something he did, not you. Got it? Still learning it myself."