The U.S. Capitol came under attack on Friday, killing one police officer after an individual rammed his car into two officers at a checkpoint.

The attacker and a U.S. Capitol Police officer have both died, a law enforcement representative announced at a press conference.


The U.S. Capitol Police later identified the officer who died as William 'Billy' Evans, a member of the USCP for 18 years.

Sources identified the suspect to NBC News as 25-year-old Noah Green of Indiana. His Facebook page says he is a follower of Islam, and he recently lost his job and expressed despondence, NBC reported.

Read more: CNBC