He wasn’t using a walker, that was a shopping cart. People still use them, I remember using them growing up.
Oh - one of those two-wheeled things that fold out and you can place stuff on the bottom? Sort of like a dolly to move a fridge?
“Well your honor, then this MAN grabbed the BIG METAL object and turned towards me. It was self defense I’m tellin’ ya’!”
And that makes it OK to shove him off the bus to his death? It was some poor old guy.