One witness in the documents is a former police officer who was a coworker of Zimmerman's at the time of the shooting. Zimmerman was fascinated by the coworker's law-enforcement experience, an FBI report shows, particularly a shooting years earlier.
The coworker told the FBI that he was working as a canine handler for a police agency when he shot a fleeing African-American suspect in the back in March 2008.
The former officer, who was 22 at the time of the shooting, said the suspect fired at him first. He said he was cleared of any wrongdoing by the Florida Department of Law Enforcement, but "was too young to deal with the stress that came with the shooting so he resigned."
Zimmerman, the witness said, "was interested in the fact that [the witness] was so young and involved in a shooting as a police officer. [Zimmerman] became interested in the facts of the case and would talk to [the witness] about the incident," according to an FBI report.
George Zimmerman FBI new evidence: New Zimmerman evidence includes FBI docs - OrlandoSentinel.com