Resentment of the US government and suspicions over the 9/11 attacks have surfaced in the writings by the Californian identified as the gunman who shot two Pentagon police officers before he was mortally wounded in a hail of return fire. The shooter's death was confirmed early Friday, hours after the Thursday evening assault, as authorities searched for a motive behind the brazen attack. The two officers, grazed by bullets, were treated in a hospital. The attack unfolded at the subway entrance to the massive Defense Department headquarters, as an eerie calm and silence were broken by the explosion of gunfire. "He just reached in his pocket, pulled out a gun and started shooting" at point-blank range, said Richard Keevill, chief of Pentagon police. "He walked up very cool. He had no real emotion on his face." – Fox News