On July 16, 2015, Muhammad Youssef Abdulazeez opened fire on two military installations in Chattanooga, Tennessee, United States. He first committed a drive-by shooting at a recruiting center, then traveled to a U.S. Navy Reserve center and continued firing, where he was killed by police in a gunfight. Four Marines died on the spot. A Navy sailor, a Marine recruiter, and a police officer were wounded; the sailor died from his injuries two days later.
On December 16, following an investigation, former Federal Bureau of Investigation (FBI) director James B. Comey said that the shootings were "motivated by foreign terrorist organization propaganda."
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