Who is Aaron Alexis?

Published On: Sep 17 2013 10:15:55 AM CDT

Learn more about Aaron Alexis, the gunman killed by police in Monday's Navy Yard shooting.

Aaron Alexis - Birthday Hat
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While no motive for the shooting has been revealed, a friend told CNN Alexis was locked in a dispute over money with the company that contracted him to work for the Navy.

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