Biff Tannen as Martys stepfather in the alternate present watches the final shoot-out. Marty switches off the TV right at the moment Clint Eastwood reveals to be wearing a metal plate as bullet-proof vest.
Clint Eastwood's character kills 3 thugs in the town he just arrived and then orders 3 coffins from the coffin maker exactly like Sanjuro Kuwabatake did in this movie.