Antwon Rose protests: Car drives through crowd in Pittsburgh - CNN Protesters angry over the death of an unarmed teen who was shot by police this week marched Friday for the third straight night down the streets of downtown Pittsburgh. Four people were arrested as hundreds of demonstrators blocked streets, Allegheny County Police Superintendent Coleman McDonough said. Police are looking for a black sedan that drove through the crowd late Friday, said Chris Togneri, the city spokesman. No injuries were reported, he said. Protesters were near PNC Park, where fans were leaving a Pittsburgh Pirates baseball game, when the car drove through, Car drives through crowd protesting police killing of Antwon Rose in Pittsburgh Antwon Rose 17, was shot by an officer three times on Tuesday as he attempted to flee a car stopped by police. Rose was one of two passengers in the car, which matched the description of a vehicle that had been involved in an earlier shooting, Allegheny County Police said.