Hall of Infinite Doors

You run toward them from your hiding spot. He is picking her up and walking a few steps to a parked car. The distance between you rapidly closes. 25 yards. 15 yards. 10. He is opening the door. You spy a large chunk of concrete on the ground nearby and pick it up. He's still oblivious to your presence as he puts her in the back seat of his car.

He turns to face you and you level him with the concrete. He collapses on the ground, blood gushing from his head.