This is what Ian King said:
Originally Posted by roguenuke
“The guy didn’t seem to speak English. The cop walked him over to the Citibank” near the northeast corner of 96th and Broadway, said one witness, Ian King, a Fordham University law student.
“[The officer] stood him up against the wall and was trying to write him a ticket. The man didn’t seem to understand, and he started walking away.
“The cop tried to pull him back, and that’s when he began to struggle with the cop
,” said King, 24. “As soon as he pushed the cop, it was like cops started running in from everywhere.”
Cops bloody old man
Clearly, the old man was reacting to the cop pulling him back while he was walking away. It's no crime to ask the police for your ID back unless you want to make stuff up and again claim the old man just snatch it back.