USMC Captain Ty Balzer, left, speaks to media as Chattanooga Police Chief Fred Fletcher listens from behind during a press conference at Tennessee Valley Authority's Missionary Ridge Auditorium on Friday, July 17, 2015 the day after a four Marines were shot and killed. The investigation is being treated as an act of terrorism. Photo by Dan Henry /Times Free Press.
Four crosses are staked in the ground at a Lee Highway memorial in front of the Armed Forces Career Center for the first four victims of the July, 16 shootings 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. Photo by Doug Strickland /Times Free Press