A guy sat on his friend's porch. A neighbor called the police on him and reported that he had a gun. The police arrived, and shot him without any verbal commands or warning. The object turned out to be a hose nozzle. After the fact, they claimed he pointed it at them. Very sad.
Another...
Indiana Man In Saggy Pants Bust | The Smoking Gun
If he was only approached because of how he was dressed, I think this was a bad arrest.
If he was not in violation of an infraction, the request for ID should have never occurred.