"Today we filed an information charging George Zimmerman with murder in the second degree," Corley said.

At a news conference in Jacksonville, Florida Wednesday, Corey would not discuss evidence in the case but said it is enough to win a conviction. 

"This is the conclusion we came to based on our review of the facts and evidence," Corey said.

Authorities said Zimmerman has turned himself in but police refuse to disclose where he is for his safety. He will be held in jail until a court bond hearing. 

Zimmerman said he shot Martin in self defense after spotting him in a gated community where Martin's father lives. Zimmerman initially called police to say he was following a suspicious person. 

DISPATCHER: "Are you following him? 

ZIMMERMAN: Yes.

DISPATCHER: "We don't need you to do that."

Soon afterwards, an confrontation, then a gunshot and Martin was dead.

The shooting sparked a national outcry led by Martin’s parents who insist their son was murdered. They also accuse Zimmerman of targeting their son because he was black. Police did not initially charge Zimmerman with a crime because of a Florida law that says a person has a right to stand his or her ground and meet force with force.

Trayvon Martin’s parents in Washington said they are relieved. 

"I have been up and down as if I was on a roller coaster. But I know that beyond a shadow of a doubt justice will be served," said Sybrina Fulton, Martin's mother.

Tensions have been running high in the small community of Sanford, Florida, since the shooting. 

For weeks demonstrators have taken to the streets calling for Zimmerman's arrest. Legal analyst say Zimmerman now will likely invoke the Stand Your Ground law as his defense and a judge could decide if the case should go to trial. If convicted Zimmerman could face a sentence of up to life in prison.