February 26: Trayvon Martin killed. George Zimmerman questioned by Sanford Police and released.
Sanford police department releases name of deceased juvenile as Travyvon Martin. Says shooter is George Zimmerman. They refuse to provide any more information.
February 28: Tracy Martin, the father of Trayvon, contacts attorney Benjamin Crump.
February 29: Sanford police department sends press releases explaining that George Zimmerman was a neighborhood watch member involved in an altercation with Trayvon Martin. Release says he is not under arrest and the matter is being investigated.
March 3: Trayvon Martin is laid to rest in the Miami area. His family holds a memorial service.
March 7: Reuters publishes report: "Family of Florida Boy Killed by Neighborhood Watch Seeks Arrest"
March 8: Attorneys Ben Crump and Natalie Jackson hold press conference on Trayvon Martin shooting at Jackson's law office in Orlando.
Members of the New Black Panther party go to Sanford Police headquarters to increase pressure for arrest of George Zimmerman
March 12: Sanford Police Chief Bill Lee announces the department does not have probable cause to arrest George Zimmerman.
March 13: State Attorney Norm Wolfinger’s office announces that they have received the investigation packet on Trayvon Martin’s shooting.
March 16: Witnesses Mary Cutcher and Selma Mora Lamilla hold press conference saying they heard Trayvon Martin cry for help, claim it could not have been self defense. Sanford police say the women gave different statements to investigators.
March 20: A girl claiming to be Trayvon Martin’s girlfriend tells Ben Crump she was on the phone with the teen moments prior to his shooting. Crump plays a recording where she says Trayvon told her someone was following him, and that she heard his phone go dead about 4 minutes into the call.
March 20: State Attorney Norm Wolfinger announces that a grand jury will convene to determine if charges should be brought against George Zimmerman
March 22: Gov. Rick Scott appoints Angela Corey as special prosecutor to determine if George Zimmerman should be charged.
March 22: Sanford police chief Bill Lee temporarily resigns.
Attorney Craig Sonner begins doing interviews on behalf of his client, George Zimmerman. Hal Uhrig would later join Sonner as an attorney for Zimmerman.
March 22: Thousands of people rally with Rev. Al Sharpton in Sanford to call for the arrest of George Zimmerman.
March 26: Unnamed Sanford law enforcement officers give press reports that George Zimmerman told them Trayvon Martin punched him, then beat his head against the ground several times before he fired the shot to save his own life.
March 27: Chris Serino, an investigator with the Sanford police department, begins doing media interviews saying that he did not believe George Zimmerman’s story and wanted to file an arrest affidavit the night of the shooting.
March 29: Robert Zimmerman, George's father, does a media interview in which he claims Trayvon Martin approached his son and asked, "Do you have a (expletive) problem?" before punching him.
April 2: State Attorney Norm Wolfinger sends out a statement denying reports that he quashed police intentions to charge Zimmerman with manslaughter
April 10: Attorneys Craig Sonner and Hal Uhrig withdraw as counsel for George Zimmerman, saying they had not spoken to their client in several days.
April 11: Special Prosecutor Angela Corey announces the filing of second degree murder charges against George Zimmerman.
April 11: Attorney Mark O’Mara holds a press conference announcing that he is now representing George Zimmerman. O’Mara says his client is scared and frightened that he’s just been charged with second degree murder.
April 11: George Zimmerman is booked into the Seminole County jail.
April 12: George Zimmerman has first appearance in Seminole County, he remains in jail without bond.