According to ABC News another development.
"George Zimmerman, the neighborhood watch crime captain who shot dead 17-year-old Trayvon Martin, told police in a written statement that Martin knocked him down with a punch to the nose, repeatedly slammed his head on the ground and tried to take his gun, a police source told ABC News.
Zimmerman had called police about Martin, whom he found suspicious, then stated he went back to his car when Martin attacked him, punching him.
The new information is the most complete version yet of what Zimmerman claims happened on the night of Feb. 26 when he shot and killed the teenager.
In addition, an eyewitness, 13-year-old Austin Brown, told police he saw a man fitting Zimmerman's description lying on the grass moaning and crying for help just seconds before he heard the gunshot that killed Martin.
The initial police report noted that Zimmerman was bleeding from the back of the head and nose, and after medical attention it was decided that he was in good enough condition to travel in a police cruiser to the Sanford, Fla., police station for questioning. He was not arrested.
Martin's girlfriend had said in a recording obtained exclusively by ABC News that she heard Martin ask Zimmerman "why are your following me, and then the man asked, what are you doing around here." She then heard a scuffle break out and the line went dead.
Phone records obtained by ABC News show that the girl, who is 16 and asked to remain anonymous, called Martin at 7:12 p.m., five minutes before police arrived, and remained on the phone with Martin until moments before he was shot.
ABC News has also learned that Martin was staying in Sanford at the time because he'd been suspended from Krop High School in Miami after being found with an empty bag of marijuana. He was staying at his father's fiance's house in Sanford.
Family spokesperson Ryan Julison stated "It's irrelevant to what happened on Feb. 26, does not change material facts of the situation, specifically that had George Zimmerman not left his vehicle and heeded the police dispatcher's guidance, we wouldn't be here today."
The new information in the emotionally charged case could complicate pressing charges against Zimmerman, which one veteran prosecutor has already said could be difficult.