On July 7, just before 9 p.m., shots rang out in downtown Dallas, Texas, during a protest over recent police shootings in Minnesota and Louisiana. Initial reports suggested that multiple gunmen were involved, and that the attack had been organized as an ambush, with the shooters taking aim at police officers from an elevated position. So far, five officers have been confirmed dead, including one who had served three tours in Iraq with the Navy. Seven more officers and two civilians were also wounded in the attack. It was the deadliest day for American law enforcement since Sept. 11, 2001.