Aaron Alexis' Remington 870 shotgun with sawed-off barrel and stock is pictured in this undated handout photo released by the FBI. Over the course of an hour-long shooting incident at the Washington ... more 
Aaron Alexis' Remington 870 shotgun with sawed-off barrel and stock is pictured in this undated handout photo released by the FBI. Over the course of an hour-long shooting incident at the Washington Navy Yard in Washington, DC on September 16, 2013, Aaron Alexis killed 12 people and wounded four others before he was shot and killed by law enforcement officers. REUTERS/FBI/Handout via Reuters (UNITED STATES - Tags: CRIME LAW MILITARY) ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS less 
1 / 6
Reuters | Photo By HANDOUT / REUTERS
Wed, Sep 25, 2013 2:43 PM EDT