Zimmerman said he was driving to the grocery store when he spotted Trayvon Martin walking through the neighborhood. Zimmerman's father said that, while his son was not on duty that night as Neighborhood Watch captain, there had been many break-ins and he thought it suspicious that someone he didn't recognize was walking behind the town homes instead of on the street or the sidewalk. Zimmerman therefore called a non-emergency police line to report Martin's behavior and summon police.[168][169] During the call, Zimmerman told the dispatcher that Martin was "coming to check me out."[74] A source to the Orlando Sentinel said in May that Zimmerman told investigators that at one point Martin circled his vehicle,[Note 7] and he rolled up his window to avoid a confrontation.[165][170]
After telling the police dispatcher that Martin "ran",[171] Zimmerman left his vehicle to determine his location and ascertain in which direction Martin had fled.[165][172] The dispatcher asked if Zimmerman was following Martin, and Zimmerman replied "Yeah." Then the dispatcher said, "OK, we don't need you to do that." Zimmerman replied with "OK" and stated that Martin got away.[171] After a discussion about where Zimmerman would meet police, the call ended, and Zimmerman told investigators he was returning to his vehicle when Martin approached him from his left rear and confronted him.[165][166] According to Zimmerman, Martin then punched him in the face, knocking him down, and began beating his head against the sidewalk.[165][166] Zimmerman said he called out for help while being beaten, and at one point Martin covered his mouth to muffle the screams.[165][166] According to Zimmerman's father, during the struggle while Martin was on top of Zimmerman, Martin saw the gun his son was carrying and said something to the effect of "You're gonna die now" or "You're gonna die tonight" and continued to beat Zimmerman.[164] Zimmerman and Martin struggled over the gun, and Zimmerman shot Martin once in the chest at close range, in self-defense.[165][166][167][Note 8]
On June 21, 2012, Zimmerman's attorneys released audiotapes of several interviews he had with police shortly after the shooting. Also included were Zimmerman's written statement of February 26, 2012, and video recordings of his reenactment of the incident and a voice stress test that he passed.[159][161][173][174][175]
In the interviews, Zimmerman says he took note of Martin because he was near a home that he had previously called police about. He also said "he was just walking casually, not like he was trying to get out of the rain," and he felt "something was off" about Martin.[170]