SANFORD, Fla. -

U.S Representative Corrine Brown and Sanford Mayor Jeff Triplett will request an immediate review by the U.S. Attorney General's office in the shooting death of a Sanford teen.

Brown met with the Sanford Police Chief, the mayor and city manager to inform them of her request on Friday.

Brown will also meet with the Martin family Friday night.

Brown told Local 6 she came to town after getting numerous calls from constituents complaining of the shooting death investigation of Trayvon Martin, 17.

"There are many things with this case that were not done correctly," Brown said outside of Sanford police headquarters. She didn't go into detail about what exactly she meant.

Brown said one man even flew to Washington, D.C. to meet with her.

"People don't think the system is working." Brown said.  "I'm hear to see that it does."

Brown said Sanford city officials were open and cooperative to an outside investigation.

Martin was shot and killed last month by neighborhood watch leader George Zimmerman, 28, while was visiting family in Central Florida.

Sanford police said on Feb. 26 just after 7 p.m., Zimmerman was on neighborhood watch and reported seeing a suspicious man walking down the street. Martin, who was unarmed, was on his way home after buying a bag of Skittles and a drink at a nearby convenience store.  Police said the two got into a scuffle and Zimmerman shot Martin in the chest. 

Zimmerman was questioned by Sanford police but has not been arrested.  Police said Zimmerman told them he acted in self-defense.  Police said they had no probable cause to arrest him, and the case has been sent to the state attorney's office.

Martin's family also spoke to the media on Friday and said they felt "betrayed by the Sanford police department," and say there has been no closure on their son's death.

Meanwhile, Local 6 news partner Florida Today reports that civil rights leaders in Brevard County plan to hold a prayer vigil and and march Sunday at the Historic Titusville Courthouse.

Glenn B. James, president of the North Brevard branch of the National Association for the Advancement of Colored People said the meeting was called to encourage Brevard-Seminole State Attorney Norm Wolfinger – who oversees prosecutions in both counties - to pursue the case in court.

The case is now being reviewed by the Brevard-Seminole State Attorney’s Office.

The vigil will be at 3 p.m.