Old Horror Movie (70s-80s) Big deformed killer


It is not, but thanks

It was about a tall with a burnedlike face killer chasing some guys (one of them was blind). And in a specific scene some guy comes out of a house screaming to another guy who was inside a car that the killer was right there and when the car guy pops his head out of the car window the killer stabs his neck from below.
Please I beg you, help me find this movie, it's been like 20 years I've been looking for it
Maybe: Maniac Cop (1988) ?

I'm looking for prison movie:

Sorry, not maniac cop either