U.S. Capitol Police have identified a man who drove his car into a vehicle barricade on Capitol grounds early Sunday morning and then died by suicide when police approached him. NBC News' Allie Raffa reports that authorities are still not sure what the man's motive was and will release his name publicly after notifying his next of kin.  » Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Maddow Show, Morning Joe, Meet the Press Daily, The Beat with Ari Melber, Deadline: White House with Nicolle Wallace, The ReidOut, All In, Last Word, 11th Hour, and more. Connect with MSNBC Online Visit msnbc.com: http://on.msnbc.com/Readmsnbc Subscribe to MSNBC Newsletter: http://link.msnbc.com/join/5ck/msnbc-daily-signup-youtube Find MSNBC on Facebook: http://on.msnbc.com/Likemsnbc Follow MSNBC on Twitter: http://on.msnbc.com/Followmsnbc Follow MSNBC on Instagram: http://on.msnbc.com/Instamsnbc #CapitolPolice #USCapitol #Police