During the bombings, on April 19, there was a shootout between police and the Tsarnaev brothers. MBTA police officer was critically injured in the course of Tsarnaev's escape in the SUV Tsarnaev was injured but escaped. On the evening of April 19, the heavily wounded Tsarnaev was found unarmed hiding in a boat on a trailer in Watertown just outside the police perimeter. He was arrested and taken to a hospital. It was later reported that he was persuaded to surrender when the FBI negotiators mentioned a public plea from his former wrestling coach.