The man who knocked me unconscious went wild when I followed him to his house after he almost collided with me on a right turn -- within just inches.
Following an individual motorist to his house to give him a piece of your mind is always a BIG mistake and is likely to provoke or escalate a bad situation as the OP has sadly learned. This new information provided by the OP is presumably the answer to the police dispatcher's question "What did you do to make them mad?", at least in this specific case.