Learn more about Aaron Alexis, the gunman killed by police in Monday's Navy Yard shooting.
The picture emerging of the Aaron Alexis, the dead gunman in Monday's Navy Yard shooting, is a study in contrasts -- one of a man who practiced languages and meditated, and another of a cold-blooded killer.
National Archives and Records Administration
J.K. Nakata/United States Geological Survey
Akron Public Schools/CNN
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!