Key quotes, questions in Trayvon Martin case

Neighborhood watch volunteer George Zimmerman has been arrested and is charged with second-degree murder for the fatal shooting of 17-year-old Trayvon Martin on Feb. 26.

Special prosecutor Angela Corey announced the charge at a news conference seven weeks after the killing.

Some explanations, key quotes, and questions and answers in the case:

Second-degree murder means a killing that was not premeditated but resulted instead from an "imminently dangerous act" that showed a "depraved" lack of regard for human life.

Under Florida's "stand your ground" law, which gives people wide latitude to use deadly force rather than retreat during a fight, Corey must first prove to a judge that Zimmerman wasn't defending himself when he killed Trayvon Martin. Only then can she take the case to a jury, in front of which she will face a high legal burden to prove that the killing wasn't in self-defense.

—Trayvon's father, Tracy Martin, of Zimmerman: "The question I would really like to ask him is, if he could look into Trayvon's eyes and see how innocent he was, would he have then pulled the trigger? Or would he have just let him go on home?"

—Zimmerman's new lawyer, Mark O'Mara: "He is troubled by everything that has happened. I cannot imagine living in George Zimmerman's shoes for the past number of weeks. Because he has been at the focus of a lot of anger, and maybe confusion and maybe some hatred and that has to be difficult. ... I'm expecting a lot of work and hopefully justice in the end."

—O'Mara on Zimmerman: "I'm not concerned about his mental well-being."

—Special prosecutor Angela Corey: "We do not prosecute by public pressure or by petition."

—George Zimmerman to a 911 dispatcher the night of the shooting: "This guy looks like he is up to no good — he is on drugs or something."

—President Barack Obama, earlier in the case: "If I had a son, he'd look like Trayvon."

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A: Special prosecutor Angela Corey says that probable cause had to be determined before authorities could arrest Zimmerman. She said there was only a slight delay, when she took it over from the previous prosecutor, who recused himself from the case.

Zimmerman told police he acted in self-defense after Martin pursued and attacked him. Florida is among 21 states with the "stand your ground law," which allows police on the scene to decide whether they believe the self-defense claim.

In many cases, the officers make an arrest and leave it to the courts to work out whether the deadly force is justified. In this case, however, police have said they are confident they did the right thing by not charging Zimmerman.

A: Corey did not disclose how she arrived at the charge, saying that was information to be revealed in court.

A: Zimmerman will appear in court within 24 hours, Corey said.

A: Yes, Mark O'Mara of Orlando, who became Zimmerman's new attorney after his former lawyers announced Tuesday that they were dropping the case. They said they couldn't keep representing Zimmerman because he had stopped communicating with them.

A: Not guilty, O'Mara says.

A: Martin, 17, was shot and killed by a single gunshot wound to the chest Feb. 26 during a confrontation with Zimmerman, a 28-year-old neighborhood watch volunteer in a gated community of townhomes in Sanford, Fla., about 20 miles northeast of Orlando.

Zimmerman was driving through the neighborhood when he spotted Martin, who was unarmed and walking to the home of his father's fiancee. She lived in the same gated community as Zimmerman.

Martin was returning from a trip to the convenience store with an iced tea and a bag of Skittles. It was raining, and Martin was walking with the hood of his sweat shirt pulled over his head. He talked to his girlfriend on a cellphone moments before the shooting, according to Martin's family's attorney.

A: On his website, therealgeorgezimmerman.com, Zimmerman has described the shooting as "a life altering event" but he says he can't go into details about what happened.

"As a result of the incident and subsequent media coverage, I have been forced to leave my home, my school, my employer, my family and ultimately, my entire life," he said on the site.

Zimmerman told police he spotted Martin as he was driving through his neighborhood and called 911 to report a suspicious person.

He said the teen had his hand in his waistband and was walking around looking at homes.

There had been several break-ins in the community in the past year, including one in which burglars took a TV and laptops.

A dispatcher told Zimmerman he didn't need to follow Martin after Zimmerman got out of his truck and started pursuing the teen.

Zimmerman told police he lost sight of the teenager and was walking back to his vehicle when he was attacked. He and Martin fought, according to witnesses. Zimmerman said Martin punched him in the nose and slammed his head against the ground.

At some point, Zimmerman pulled a gun and shot Martin.

Police said Zimmerman was bleeding from his nose and the back of his head. He told police he had yelled out for help before he shot Martin.

A: Much of Martin's side of the story comes from a cellphone conversation he had with his girlfriend moments before the shooting. She was interviewed by the family's attorney, Benjamin Crump, and he released much of what she said to the news media. She has not been identified.

In the interview, she said Trayvon Martin told her that he was being followed.

"She says: 'Run.' He says, 'I'm not going to run, I'm just going to walk fast,'" Crump said, quoting the girl.

The girl later heard Martin say, "Why are you following me?" Another man asked, "What are you doing around here?" Crump said.

After Martin encountered Zimmerman, the girl thinks she heard a scuffle "because his voice changes like something interrupted his speech," Crump said. The phone call ended before the girl heard any gunshots.

Martin's parents said their son made the pleas for help that witnesses heard.

A: Zimmerman's father is white, and his mother is Hispanic of Peruvian descent.

A: Zimmerman is in jail in Sanford.