Eyewitnesses recount moments of violent tragedy

In this image made from video and released by WRCB-TV, authorities work an active shooting scene on amincola highway near the Naval Reserve Center, in Chattanooga. on Thursday, July 16, 2015. Chattanooga Mayor Andy Berke says police are pursuing an active shooter after reports of a shooting at the military reserve center. (WRCB-TV via AP) MANDATORY CREDIT

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"I just heard all the shooting," said Fred Wright, a counter salesman at Carquest Auto Parts downhill from the military recruiting office at 6219 Lee Hwy.

Then