Chattanooga Shooting Witness: 'It Was Endless Shots'
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New details about Chattanooga gunman
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Pentagon: 4 Marines killed in Chattanooga shooting
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Chattanooga shooter's father was investigated by FBI
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Donald Trump Reacts to Chattanooga Shootings on 'The O'Reilly Factor'
Muhammad Youssef Abdulazeez opened fire on two military installations in Chattanooga, Tennessee. 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.