April 9, 2012 - Prosecutor Angela Corey announces that she will not present the case to a grand jury.
April 10, 2012 - Attorneys Hal Uhrig and Craig Sonner announce that they have lost contact with Zimmerman and no longer represent him.
April 11, 2012 - Zimmerman is charged with second-degree murder. His new lawyer, Mark O'Mara, tells CNN that Zimmerman has turned himself in.
April 18, 2012 - Seminole Circuit Court Judge Jessica Recksiedler, who was assigned to Zimmerman's case, approves a motion to disqualify herself from the criminal case because her husband works as a CNN legal analyst.
April 18, 2012 - It is announced that Seminole County Circuit Judge Kenneth Lester Jr. will take over George Zimmerman's case.
April 20, 2012 - Zimmerman's bond hearing is held. Judge Lester sets Zimmerman's bond at $150,000. During the hearing, Zimmerman apologizes to the family of Trayvon Martin for the loss of their son.
April 23, 2012 - Zimmerman is released on bail at 12:05 AM. Later in the day, Zimmerman enters a written not guilty plea and waves his right to appear at his arraignment.
May 8, 2012 - Judge Kenneth Lester accepts Zimmerman's written plea of not guilty.
May 15, 2012 - A medical report by George Zimmerman's family doctor, taken a day after the February 26 shooting, shows Zimmerman was diagnosed with a fractured nose, two black eyes and two lacerations on the back of his head.
June 1, 2012 - Judge Kenneth Lester Jr. revokes Zimmerman's bond and orders him to surrender within 48 hours after the prosecution argues that Zimmerman and his wife, Shellie, misrepresented their finances when Zimmerman's bond was originally set in April.
June 3, 2012 - At 1:45 PM, Zimmerman surrenders to authorities and is taken into custody at the John E. Polk Correctional Facility in Seminole County.
June 12, 2012 - George Zimmerman's wife Shellie is arrested and charged with perjury.
June 18, 2012 - Audio of six phone calls between Zimmerman and his wife Shellie are released, along with bank statements.
June 20, 2012 - Sanford Police Chief Bill Lee is officially fired.
June 25, 2012 - Zimmerman's attorney files a motion requesting a "reasonable bond" be set for Zimmerman's release from jail.
July 5, 2012 - The judge sets Zimmerman's bond at $1 million.
July 6, 2012 - Zimmerman is released from jail after posting the required 10% of the $1 million bond ($100,000).
July 13, 2012 - Zimmerman's legal team files a motion requesting Judge Lester step down from the case. The motion claims Zimmerman cannot get a fair trial because Lester used "gratuitous, disparaging" language in the previous week's bail order.
July 18, 2012 - Zimmerman, appearing on Fox News "Hannity" show, does his first television interview since the shooting. He says he would not do anything differently.
August 9, 2012 - A photo of Trayvon Martin's body and George Zimmerman's school records are mistakenly released by prosecutors. Special Prosecutor Angela Corey's office issues a statement asking reporters to "please disregard and do not use the information contained in the initial e-mail. It was inadvertently attached."
August 13, 2012 - George Zimmerman appeals Judge Lester's refusal to recuse himself with the Fifth District Court of Appeals.
August 29, 2012 - A Florida appeals court grants Zimmerman's request for a new judge, saying Judge Kenneth Lester's remarks in a bail order put Zimmerman in reasonable fear of a fair trial.
August 30, 2012 - Judge Debra Nelson is assigned to replace Judge Kenneth Lester in the case of George Zimmerman.
December 7, 2012 - Zimmerman sues NBC Universal for allegedly editing the 911 call he placed on the night of the tragic event. He states in the lawsuit that NBC unfairly made it appear that "Zimmerman was a racist, and that he was racially profiling Trayvon Martin".
February 9, 2013 - The Justice for Trayvon Martin Foundation hosts a "Day of Remembrance Community Peace Walk and Forum" in Miami. It takes place four days after what would have been Martin's 18th birthday.