July 16 shooter had no hard drugs in his system during April DUI arrest, lab results show

FBI investigators work the scene of the July, 16 shooting at the Naval Operational Support Center on Amnicola Highway on Saturday, July 18, 2015, in Chattanooga, Tenn. U.S. Navy Petty Officer Randall Smith died Saturday from wounds sustained when gunman Mohammad Youssef Abdulazeez shot and killed four U.S. Marines and wounded two others and a Chattanooga police officer at the Naval Operational Support Center shortly after firing into the Armed Forces Career Center on Lee Highway.
photo A U.S. official says the gunman in the shootings in Tennessee has been identified as 24-year-old Muhammad Youssef Abdulazeez, according to the Associated Press. He was believed to have been born in Kuwait, and it was unclear whether he was a U.S. or Kuwaiti citizen. The official was speaking on condition of anonymity to discuss the ongoing, sensitive investigation. It was not immediately clear whether the gunman's first name was spelled Muhammad or Mohammad. He is from Hixson, Tennessee, which is just a few miles across the river from Chattanooga.

Mohammad Youssef Abdulazeez, the Chattanooga gunman who attacked service personnel at two military installations on July 16, did not have alcohol in his system when police charged him with DUI three months earlier, according to a toxicology report obtained by the Times Free Press.

Abdulazeez,