The blood of twelve killed victims at the Washington Naval Yard shooting was still warm as the political gun control debate began again. Aaron Alexis, pictured below, is now confirmed as the sole suspect in the shooting at the Naval Yard on Monday. Discharged by the Navy in 2011, Alexis was known to have many mental health issues, including anger and paranoia, along with some reports that he heard voices. He was also known to be obsessed with violent video games and has committed at least two other shooting incidents before Monday. In 2004, Alexis reportedly shot the tires of a neighbor when he lived in Washington State and again in 2010 when he discharged a handgun in his apartment in Fort Worth, Texas, sending the bullet up into the apartment above him. The U.S. Navy did treat him for his mental disorders and despite of this and his past, Alexis still managed to obtain a security clearance, giving him access to the Naval Yards as a subcontractor.