article_snippet.sent: the man fired again at them during the chase before police blocked the man and collided with the man , D.C. Police Chief Cathy Lanier said.
article_snippet.sent: Cornered, a federal officer opened fire again and police shot back.
article_snippet.sent: During the exchange of gunfire, both the suspect and an officer were wounded, an officer said. '
article_snippet.sent: The shooter then led police on a car chase through Maryland and Washington, before being cornered and exchanging gunfire with and a police leaving one officer wounded .