About 7:10 p.m.: Phone records show Martin was on the phone with his girlfriend around the time he spotted Zimmerman while returning from a convenience store to his father's fiancÃ©e's home.  At a March 20 news conference, Martin family attorney Benjamin Crump says the girl hears someone ask Martin what he was doing and Martin asking why the person was following him. The girl gets the impression that there is an altercation in which the earpiece falls out of Martin's ear and the connection goes dead, according to Crump.  According to an Orlando Sentinel story later confirmed by Sanford police, Zimmerman tells authorities that after briefly losing track of Martin, the teen approached him. After exchanging words, Zimmerman says, he reached for his cell phone, and then Martin punched him in the nose. Zimmerman says Martin pinned him to the ground and began slamming his head into a sidewalk.  About 7:25 p.m.: Martin is shot and killed. The weather is rainy.  At the time of his death, the teenager is unarmed and carrying a small amount of cash, a bag of Skittles candy and an iced tea.  Several neighbors of the gated community called about the incident, with authorities eventually releasing the contents of seven such 911 calls. In one, a man whispers, "Hurry, please. ... There's someone screaming outside. There's a gunshot. Hurry up. ... There's someone screaming. I just heard a gunshot."  Another neighbor says, "There were gunshots right outside my house. There's someone screaming. I just heard a guy shot. Hurry up, they are right outside my house."  In another call, a woman begs the dispatchers to send help, saying someone is "screaming and hollering" for help. Moments later, she describes a light at the scene of the shooting. "Oh, my God," she says. "There's still somebody out there walking with a flashlight."
Here's a look at the timeline of events in the shooting of Trayvon Martin in Sanford, Florida, and the ensuing uproar.February 26About 7 p.m.: George Zimmerman, a 28-year-old neighborhood watch...