The officer reached to his shirt for a microphone. Minutes later, Ango wasn't being held anymore. He was free to go. And he wasn't given a ticket for riding an unregistered vehicle on a city street, which would have led to a fine.

Ango was now angry.

"Why did you do that?" Ango said he asked the cop.

Ango said the cop responded: "Get the (vulgarity) out of here. You are already beat up enough."

Ango later took pictures of his injuries and sought treatment. Large patches on his arms were blood-red. The skin had been scraped off when he slid.

Buffalo police refused to comment because the Ango matter is now the subject of litigation.

A lawyer for Ango, Matthew Albert, alleges in a lawsuit that the officer, by knocking Ango off the bike, used excessive force on a citizen who did nothing wrong. Even if the officer wanted to question Ango, "the use of force still was massively in excess to any force needed to execute a traffic stop," Albert wrote.