Rev. Al Sharpton made the morning talk show rounds on Monday to rally support for a "Justice for Trayvon National Day of Action" on Saturday.

The civil rights leader and MSNBC host is calling for Americans outraged by the George Zimmerman verdict to head to federal buildings and courthouses in 100 cities across the nation to pressure the Justice Department to charge George Zimmerman with violating Trayvon Martin's civil rights.

Sharpton's National Action Network is organizing the protests.

DOJ began an investigation months ago, but put it on hold until a verdict was reached in the criminal trial. The agency announced Sunday that it would review the case for possible civil rights violations.

But "might" isn't good enough for Sharpton and other civil rights leaders who are hoping that Zimmerman will be charged and found guilty in a civil trial like the police officers who brutally beat Rodney King in 1991.

So many people have gone online to sign the NAACP's petition to prosecute Zimmerman, the group's website crashed.

Leaders also want to send the message that Sunday's protests weren't a one-day gripe session in the immediate aftermath of the verdict, but the beginning of a nationwide effort to get justice for the slain teen and his family.

"If we stand out there this Saturday, a week later, people will know we didn't just have a fit over the weekend, but it's a movement for justice. It's very important to send that signal because they expect [people] will be mad two or three days and calm down," Sharpton said in an interview on The Steve Harvey Morning Show.

In addition, the event will serve as a lead-in to the March on Washington 50th anniversary events in August, which will focus on voting rights and Trayvon Martin.

"The one thing the '60s taught us is you've got to stay on an issue. You can't just get mad and go home after you've expressed [views] one time," Sharpton said. "You've got to stay on it and we're going to stay on this until we get some justice."

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(Photo: AP Photo/John Minchillo)