That’s what happened to me when I got attacked while homeless. The guy had me on my back in the street and was just continuing to kick my neck and head. He wasn’t stopping.
I’d never seen this guy in my life.
It only stopped because some other strangers happened to see and pulled him off me.
I’ve been close to dying before but it didn’t invalidate my whole worldview. But this guy’s rage, the willingness to kill a random stranger just for the hell of it, changed me deeply.