Transcript for Trayvon Martin's Alleged Killer: 911 Calls
Are new calls for the FBI to investigate. A case that has sparked outrage across the country a seventeen year old boy unarmed. Gunned down by a neighborhood. Watch. A man who was inside a gated community he is still a free man is a flurry of 911 calls raises questions about what -- a protector. And what does a vigilante. Here's ABC's -- government. This how. -- single gunshot. Tell the story of a life extinguished. Three weeks ago trade on -- stepped out for some skills and iced -- the seventeen year old spotted by neighborhood watch volunteer George -- Who calls the police. This color look like he does no good editor is -- their homes and all they always get away -- but what -- India if we don't want to. But he does anyway. The unarmed TDs file. These -- in -- -- a -- of my porch come in and outside Zimmerman pulls out his gun. And flyers. The scuffle happened somewhere around here the rest -- and Martin shot dead right around here -- over there about seventy yards down. It was his backdoor trade on. The boy who used to let his father kitchen in public he's dead. Zimmerman who claimed self defense has not been arrested and trade bonds parents say they don't want do you think that -- -- -- -- -- the same. Haven't been like. I don't think you would have even been follow. If you was a white kid. Zimmerman a married 28 year old. Has a history calling 911 more than three dozen false alarms in recent months like this instance. With the neighborhood watch team's upcoming meeting on burglary and vandalism. Certainly. And while there -- about 25000. Neighborhood watch groups across the nation -- group was never registered. Zimmerman violating basic neighborhood watch guidelines never carry a gun and never confront the suspect. Tonight more than 430000. Have signed a petition demanding the government's arrest standing with trade -- mother. Jerry just that it -- guilty. But for now police still calling this -- Self defense. Matt Gutman ABC news Sanford Florida.
This transcript has been automatically generated and may not be 100% accurate.