http://en.wikipedia.org/wiki/George_Zimmerman#George_Zimmerman . . .
Martin had been suspended from school at the time of his death, his third disciplinary suspension of the year.[46] One suspension was for tardiness and truancy.[47] Another suspension in October 2011 was for graffiti, when Martin was observed by a security camera in a restricted area of the school marking up a door with "W.T.F."[47] When he was later searched by a Miami-Dade School Police Department officer, looking for the graffiti marker, the officer found several pieces of women's jewelry in his backpack, which Martin said a friend had given to him. A screwdriver was also found, which was described by the school police investigator as a burglary tool. The jewelry was impounded and given to the police, but no evidence ever surfaced to indicate that the jewelry was stolen.[47] Martin's third suspension involved a marijuana pipe and an empty bag containing marijuana residue.[46] Martin was not charged with any crime related to these incidents and did not have a juvenile record.[48] Judge Nelson ruled that the defense may have access to Martin's records, including the details of these suspensions, as well as access to Martin's social media sites,[49] but ruled they will not be admissible as evidence during the trial unless they can be shown to be relevant.[50]
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About two minutes into the call, Zimmerman said, "he's running."[35] The dispatcher asked, "He's running? Which way is he running?"[93] The sound of a car door chime is heard, indicating Zimmerman opened his car door.[94] Zimmerman followed Martin, eventually losing sight of him.[35] The dispatcher asked Zimmerman if he was following him. When Zimmerman answered, "yeah," the dispatcher said, "We don't need you to do that." Zimmerman responded, "Okay."[95] Zimmerman asked that police call him upon their arrival so he could provide his location.[35] Zimmerman ended the call at 7:15 p.m.[35]
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Zimmerman said he left his truck to find a street sign so he would be able to tell the police dispatcher where he was. He told investigators that he was not following Martin but was "just going in the same direction he was" to find an address, but admitted that he had also left his truck to try to see in which direction Martin had gone.[184] The altercation began, he said, when Martin suddenly appeared while Zimmerman was walking back to his vehicle. He described Martin at different points in the interviews as appearing "out of nowhere," "from the darkness," and as "jump[ing] out of the bushes."[184][185] Zimmerman said that Martin asked, "You got a **** problem, homie?" Zimmerman replied no, and then Martin said that he did now, and punched him.[188] As they struggled on the ground, Zimmerman on his back with Martin on top of him, Zimmerman yelled for help "probably 50 times." (See Background sounds of yelling for help in 9-1-1 calls) Martin told him to "Shut the **** up," as he hit him in the face and pounded his head on a concrete sidewalk.[185] When Zimmerman tried to move off the concrete, Martin saw his gun and said "You're going to die tonight ****!" Martin grabbed for the gun, but Zimmerman grabbed it first. He said after firing his weapon at Martin, he wasn't sure at first that he had hit him, so he got on top of him in order to subdue him.[184][184][185] Bystanders and police arrived shortly after Martin was shot.[189][190]
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On June 26, 2012, the prosecution released the results of a voice stress test performed on George Zimmerman the day after the shooting.[192][193] A voice stress test is a type of test used to measure deceptive or psychological stress in the human voice in response to questions.[194] Zimmerman was asked, "Did you confront the guy you shot?", to which Zimmerman answered, "No." Zimmerman was asked, "Were you in fear for your life, when you shot the guy?", to which Zimmerman answered, "Yes."[192] The examiner concluded that Zimmerman "told substantially the complete truth" in the examination, and Zimmerman was classified as "No Deception Indicated (NDI)" according to the report.[192]