An Associated Press reporter just tweeted:
BREAKING: Official tells AP: Trayvon Martin’s killer to be charged with 2nd-degree murder; is in custody. -RAS
In Florida, anyone convicted of second degree murder can be sentenced to the maximum of life in prison. Officials will announce the charge at a press conference fifteen minutes from now, at 6pm Eastern. There may be additional lesser included offenses, such as aggravated assault with a deadly weapon.
Update 1 (6:04 pm) — Special prosecuting attorney Angela Corey just announced that on behalf of Trayvon Martin, George Zimmerman has been charged with murder in the second degree. This is the maximum charge she could have used. Zimmerman has a right to appear in front of the magistrate in Seminole County within 24 hours of his arrest. She confirmed that Zimmerman is in the custody of law enforcement officers in the state of Florida after having turned himself in, but she would not say where he is at the moment for his own safety.
CNN reports that Zimmerman now has a new attorney, Mark O’Mara.
Update 2 (6:07) — Prosecutor Corey says Zimmerman is currently being held without bond, but Zimmerman’s lawyer is entitled to request a bond, at which point a bond hearing will be held. She also says prosecutors have to have a reasonable certainty of conviction before filing charges. Determination has not yet been made as to where the trial will be held.