I watched earlier without sound. Cranked it up this time and you can see everyone reacted to hearing his head hit the concrete. His head hit HARD.
Has anyone indicated what he was going up to talk to them about? He did not appear particularly threatening.
It doesn't matter, they were riot control officers in formation. He made physical contact with him and possibly was reaching for his baton in an effort to break that formation. It wasnt like he fainted on the officer closest to him or was seeking medical attention. Or patiently waited for a support officer to address him.
A 75 year old man assumes most if not all liability in that situation.
Insurgents would do shit like that all the time.
Kids, the elderly, a flock of goats, anything to slow you down shoot you and or blow you up.