Oh, I’ve seen these. I had three elderly aunts and uncles. They all went through Alzheimers. They would fall over stuff all of the time.
The key to a fall injury bruise is the arms. Unless you are knocked out cold, there are always bruises on the arms. Or at his age, broken hips, or shoulders.
The indications on his face are from a whooping.
It’s got to be someone he knows, otherwise we’d hear about an assault arrest.. Mafia boss in Vegas most likely.