Story highlights Father says about victim: "He had no reason to be the aggressor"

Special prosecutor Angela Corey says she will release new information within 3 days

The attorney for parents of slain teen says family is concerned Zimmerman could be a flight risk

Zimmerman thanks supporters on his website

Attorneys for neighborhood watch volunteer George Zimmerman, who authorities say fatally shot an unarmed teenager in Florida, said Tuesday they have lost contact with their client and no longer represent him.

"He has gone on his own. I'm not sure what he's doing or who he's talking to," said legal adviser Craig Sonner. "If he wants us to come back as counsel, he will contact us."

Sonner, who said they last were in touch with Zimmerman on Sunday, spoke to reporters in Florida with attorney Hal Uhrig.

Uhrig said Zimmerman had, on his own, called Sean Hannity of Fox News and the office of the special prosecutor appointed to lead the investigation.

"One of the things every defense attorney tells his client is don't talk to the prosecutors. Don't talk to the cops. Frankly, don't talk to anybody until we get control of the situation and do it through counsel," said Uhrig, adding that he was concerned about his former client's "emotional and physical safety." He said Zimmerman was "probably suffering from post-traumatic stress."

Uhrig also seemed to suggest that Zimmerman had left the state of Florida.

"You can stop looking in Florida," he said. "Look much farther away than that."

About Zimmerman, Sonner would say only, "He's in the United States."

"I still believe that he was acting in self-defense that night. Nothing that I've said about him, or this case, has changed in any way," he said.

Uhrig similarly defended his former client on CNN's "AC360˚" Tuesday night.

"We believe in his case; we believe in his innocence. We were prepared to defend him all the way. But we simply cannot defend somebody who won't communicate with us and who is off the reservation talking to people we've advised him not to talk to," he said.

Tuesday night, Hannity confirmed he was in fact contacted by someone he believes was Zimmerman. They spoke on the phone and Hannity agreed not to report on the "contents of that conversation," he said.

Although details of the February 26 incident remain murky, what is known is that 17-year-old Trayvon Martin, an African-American, ventured out from his father's fiancee's home in Sanford to get a snack at a nearby convenience store.

JUST WATCHED Lawyer: Zimmerman's website is a luxury Replay More Videos ... MUST WATCH Lawyer: Zimmerman's website is a luxury 02:39

JUST WATCHED Legal experts discuss Martin Case Replay More Videos ... MUST WATCH Legal experts discuss Martin Case 01:17

JUST WATCHED No grand jury for Trayvon Martin trial Replay More Videos ... MUST WATCH No grand jury for Trayvon Martin trial 01:20

JUST WATCHED Zimmerman's attorneys: We lost contact Replay More Videos ... MUST WATCH Zimmerman's attorneys: We lost contact 02:27

As he walked back with a bag of Skittles and an Arizona Iced Tea, he was shot and killed by Zimmerman, who is Hispanic and who had called 911 to complain about a suspicious person in the neighborhood, according to authorities.

Zimmerman told Sanford police the shooting was in self-defense. The fact that he has not been charged with a crime has provoked demonstrations and calls for his arrest.

Martin's death has triggered a nationwide debate about race in America and Florida's "stand your ground" law, which allows people to use deadly force anywhere they feel a reasonable threat of death or serious injury.

An attorney for Martin's family, Benjamin Crump, expressed concern that Zimmerman's lawyers said they did not know his whereabouts. If Zimmerman is charged, then authorities will need to find him to hold him accountable, Crump said. "He's a flight risk," he said. "Right now, we're concerned about that."

Martin's mother, Sybrina Fulton, predicted that both she and Zimmerman himself would be better off if he were arrested. "I think it will be a sense of relief on both ends," she told CNN's Piers Morgan. "He will have a chance to have his day in court, where he can plea for his self-defense, if that's what he wants to use. But we just want him to be arrested so that he can come before a judge and jury."

Martin's father, Tracy Martin, said he had no doubt his son was not the aggressor. "Why would he approach an individual that he didn't know?" the father asked. "He'd never seen George Zimmerman; he'd never heard of George Zimmerman. He had no reason to be the aggressor."

Meanwhile, a friend of George Zimmerman took issue with how his former attorney characterized his mental state.

Frank Taaffe said he spoke Monday with Zimmerman and that his friend was "clear, concise and lucid."

Special prosecutor Angela Corey has not indicated when she will decide whether to file charges against Zimmerman. But on Tuesday, she said she is preparing to release new information on the investigation and will hold a news conference within the next three days.

Corey, assigned to oversee the investigation, announced Monday that she would not present the controversial shooting case to a grand jury. A grand jury set to convene Tuesday was canceled.

"The decision should not be considered a factor in the final determination of the case," Corey's office said.

Tracy Martin expressed relief over the prosecutor's announcement. "For Miss Corey to come out and say she's going to make a decision in 72 hours takes a little pressure off," he said. "We're just hoping ... that the correct decision is made."

Earlier, he had said, "I have faith in her."

Zimmerman recently launched a website to warn supporters about groups that falsely claim to be raising funds for his defense and to solicit donations for himself.

"The support has been overwhelming in volume and strength. I thank you all and ask that you permit me the time to respond to each one of you personally," he wrote on the site Tuesday.

He included a quote that he attributed to Edmund Burke: "The only thing necessary for the triumph of evil, is that good men do nothing."

Zimmerman's now-former lawyers and friend Taaffe confirmed the authenticity of the website, which was set up over the weekend.

Fulton said Tuesday that Zimmerman has the right to launch a website, but Martin said he feels Zimmerman is raising money off his son's death.

Crump, the lawyer for Martin's family -- which also has a site raising funds to support its efforts -- said it's unfair Zimmerman remains free to express his views and solicit money.

After the shooting, Sanford police questioned Zimmerman and released him without charges. Authorities have said Zimmerman was not immediately charged because there were no grounds, at the outset, to disprove his account that he'd acted to protect himself.

Thousands of people have converged on Sanford to join in protests calling for Zimmerman's arrest and criticizing the police department's handling of the case.

A marked Sanford police car was shot several times early Tuesday, authorities said. The car was parked in an elementary school parking lot "as a visible deterrent due to tour buses using the school property to park during the day and evening hours," according to Sanford police spokesman Sgt. David Morgenstern. The buses have been frequenting the area since the shooting, Morgenstern said.

The vehicle was unoccupied at the time of the shooting, thought to have been at about 4:30 a.m., police said. Residents called authorities to report shots fired, Morgenstern said.

Glass was shattered and the car's body was pierced. Police were inspecting the vehicle in an evidence processing unit, he said.

The shooting was the first violence reported that may have been related to Martin's death, Morgenstern said. No one was hurt and the shooting is under investigation.