Judge Recksiedler will be replaced by Judge Kenneth R. Lester Jr., 58, who was first elected to the court in 1996. Judge Lester graduated from the University of Central Florida and earned his law degree from the University of Florida.

Mr. Zimmerman, 28, the neighborhood watch coordinator for his gated residential community in Sanford, Fla., was charged with second-degree murder on April 11, more than six weeks after he shot and killed Trayvon Martin, an unarmed 17-year-old who was staying with a friend of his father’s in the community.

Mr. Zimmerman told the police that he shot Mr. Martin in self-defense. When prosecutors did not move to arrest him weeks after the shooting, local pastors held protests that spread across the country and led to a national discussion about racial profiling and the fairness of the criminal justice system.

Since his arrest, Mr. Zimmerman has remained in custody at the Seminole County jail. The charges were brought against him by a special prosecutor, Angela B. Corey, the state attorney for the Jacksonville area, who was appointed by Gov. Rick Scott after the local prosecutor stepped aside amid criticism of his handling of the case.