Security cameras captured haunting images of the gunman as he prepares for the massacre, and begins his rampage. The recordings show employees running for their lives. The FBI just released this video, and Joe Johns has new information on the shooter.
There are serious new questions about why the Navy Yard shooter was given access to several military facilities and a "secret" level security clearance. 360's Drew Griffin uncovers some publicly available records, that may have been missed during the background checks.
Anderson discussed this with Former Bush administration Homeland Security Adviser Fran Townsend and former FBI Executive Assistant Director Shawn Henry.
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
Questions or comments? Send an email
Want to know more? Go behind the scenes with