A chronology based on the times of phone calls, 911 and Martin's girlfriend's phone records and police reports.
7:11 p.m. - Zimmerman, who was in his truck, spotted Trayvon. Zimmerman called police.
7:12 p.m - A T-Mobile phone log provided by the family's attorney shows Trayvon's girlfriend called him.
7:13 - two minutes into Zimmerman's call, he tells the police operator: "S — , he's running", and chimes indicate he is opening his door.
7:15 Zimmerman hung up.
7:16 - the girlfriend's call ended when the line went dead.
7:17 - The police arrived. Trayvon was dead.
Officer Ricardo Ayala and Sgt. Anthony Raimondo attempted CPR on Trayvon until Sanford Fire Rescue arrived. A paramedic pronounced Trayvon dead at 7:30.
7:52 p.m - A time stamp on the precinct security camera video shows Zimmerman got to the police station.