Free tuition for Rachel Jeantel
In another development related to the case, Tom Joyner, host of the nationally-syndicated "Tom Joyner Morning Show," offered to pay for Martin's friend, Rachel Jeantel, to attend a historically black college or university.
"Rachel, here's my offer to you: If you want to graduate from high school and go to an HBCU, even if it's not in Florida but especially Florida ... if you want to do that, I want to help you do that," Joyner said on his radio show Tuesday as he interviewed the young woman.
Jeantel, now 19, was on the phone with Martin moments before he was shot and was considered a key prosecution witness. But her two days of testimony were tense and combative at times, and at least one juror said she had difficulty understanding Jeantel.
"The reaction to her testimony was very troubling to me," Joyner told CNN's Piers Morgan. "People were criticizing her and her education and communication skills. And the way the lawyer was just beating her up on the stand just really moved me."
Jeantel, who said she might want to go into law enforcement, thanked Joyner.
Attorney: Zimmerman wanted to take the stand
Zimmerman wanted to testify at his trial, but his defense team cautioned against it, his attorney Mark O'Mara told HLN on Tuesday night.
"He wanted to tell that jury what he did, why he did it and what position that he was put in, why he had to react that way that he reacted," O'Mara said.
But putting a defendant on the stand "can do more harm than good," O'Mara said. And since the defense considered the state's case weak, the team chose not to take the risk.
"Had he not ever given statements, he would have testified without question. But with six statements already before the jury, courtesy of the state, there was just no reason to do anything else. ... I think if they had not put the statements in, that we would have had George testify."
Zimmerman is in hiding and "very worried," O'Mara said. "He is surprised that people didn't listen to the trial and understand that he did act in self-defense. I was a bit concerned or surprised because I would have thought that people would have listened more. But unfortunately, people who have made up their minds about this case one way or the other are not going to change their mind because of the facts. ... And unfortunately, it leads to more divide, rather than less, between us."
Holder mum on possible federal charges
The NAACP says more than 1 million people have signed an online petition demanding the government file federal civil rights charges against Zimmerman, but Attorney General Eric Holder hasn't said whether he will seek such charges.
In order to bring federal civil rights charges, the Justice Department would need to establish that a hate crime was committed -- a legal burden that Holder says would be a challenge to meet.
But Holder took aim at "stand your ground" laws like the one in Florida that have expanded the right to respond with deadly force if attacked outside one's home.
Those laws "try to fix something that was never broken" and "senselessly expand the concept of self-defense and sow dangerous conflict in our neighborhoods," he said in speech to the NAACP on Tuesday.
Holder repeated his pledge for a full investigation of Martin's death in the aftermath of Zimmerman's acquittal, saying the Justice Department "will continue to act in a manner that is consistent with the facts and the law. We will not be afraid."
The Department of Justice opened an investigation into the Zimmerman case last year, and a statement from the agency n Sunday said it was ongoing and will now include evidence and testimony from the Florida trial.
Assistant Attorney General Tom Perez and other officials held a conference call Monday with civil rights leaders, a Justice Department official said Wednesday. Most of the participants were from Florida but national figures were also on the call; Holder was not.