Nonsense.
Firstly, you have to show that Brewer was relevant as he wasn't in the first few versions of what happened. Secondly, quote Brewer saying that LHO punched McDonald.
Learn the evidence.
Firstly, you have to show that Brewer was relevant...
This is why you are a Kook.
You clearly stated that no one "outside of the police" witnessed Oswald punching McDonald. Now you're moving the goal posts by ignorantly trying to raise the question of whether Brewer is "relevant" or not.
Secondly, quote Brewer saying that LHO punched McDonald.
"An officer approached him and he hit the officer and knocked him back."12/6/63 Affidavit of Johnny Brewer