SANFORD, Fla. -- Hundreds of people marched to a city commissioner meeting in Sanford Monday to demand the arrest of George Zimmerman in the shooting of Trayvon Martin.

Chanting "Justice for Trayvon," supporters delivered a petition with two million signatures, asking to take Zimmerman in to custody.

"DO THE RIGHT THING! DO THE RIGHT THING! ARREST ZIMMERMAN NOW," demanded Al Sharpton of the Sanford City Commissioners.

With more than 500 people packed into the meeting, Al Sharpton had the crowd on their feet speaking about the role race played in Trayvon Martin's death.

"You are making the world know you as a place of racial intolerance and double standards," he said.

The storyline grew more complicated though, after the Sanford Police Department confirmed reports that witnesses saw Martin attack George Zimmerman and push him to the ground.

"They have had to deal with insults and castigations and rumors. But they held their heads up high," he said.

His parents were flanked by supporters throughout the day, speaking at a number of rallies and fighting back tears at the city commissioners' meeting.

"My heart is broken. That is the first and foremost. That was my baby," said Trayvon Martin's mother,Sybrina Fulton.

"We're not asking for an eye for an eye, we're asking for justice, justice, justice," said Trayvon's father,

Fourth Circuit State Attorney Angela Corey, who serves on the First Coast,has now taken over the investigation into the shooting, but she was assigned the case less than a week ago, and said there's no timeline for whenshe'll divulgeher findings.