George Zimmerman on trial in death of Fla. teen

Pool,AP Photo/Orlando Sentinel, Joe Burbank

George Zimmerman arrives in the courtroom for his trial at the Seminole County Criminal Justice Center, in Sanford, Fla., Friday, July 12, 2013. Zimmerman is charged in the 2012 shooting death of unarmed teenager Trayvon Martin.

George Zimmerman wipes his face after arriving in the courtroom during his trial at the Seminole County Criminal Justice Center, in Sanford, Fla., Friday, July 12, 2013.

George Zimmerman, left, wipes his face while standing next to attorney Don West, after arriving in the courtroom for his trial at the Seminole County Criminal Justice Center, in Sanford, Fla., Friday, July 12, 2013.

George Zimmerman wipes his face after arriving in the courtroom for his trial at the Seminole County Criminal Justice Center, in Sanford, Fla., Friday, July 12, 2013.

Pool,AP Photo/Orlando Sentinel, Gary W. Green

George Zimmerman enters the courtroom for his trial in Seminole circuit court in Sanford, Fla. Wednesday, July 10, 2013.

George Zimmerman leaves the courtroom for a lunch break his trial in Seminole Circuit Court, in Sanford, Fla., Tuesday, July 9, 2013.

George Zimmerman looks up at a projection screen as defense counsel Don West talks to an assistant during his trial in Seminole Circuit Court, in Sanford, Fla., Tuesday, July 9, 2013.

AP Photo/Orlando Sentinel, Pool , Joe Burbank

Defense counsel Mark O'Mara talks to George Zimmerman, with co-counsel Don West, center, in Seminole Circuit Court, in Sanford, Fla., Tuesday, July 9, 2013.

George Zimmerman, left, speaks to defense counsel Don West during a recess in his trial in Seminole circuit court, in Sanford, Fla., Monday, July 8, 2013. Zimmerman is charged with second-degree murder in the fatal shooting of Trayvon Martin, an unarmed teen, in 2012.

George Zimmerman, right, enters the courtroom for his trial in Seminole County circuit court, Friday, July 5, 2013, in Sanford, Fla. His sister Gracie follows behind. Zimmerman is charged with second-degree murder in the 2012 shooting death of Florida teen Trayvon Martin.

George Zimmerman, right, greets one of his defense attorneys, Don West, during his trial in Seminole circuit court, Friday, July 5, 2013 in Sanford, Fla.

George Zimmerman, right, stands next to one of his defense attorneys, Don West, during his trial in Seminole circuit court, Friday, July 5, 2013 in Sanford, Fla.

AP Photo/Orlando Sentinel, Jacob Langston, Pool

George Zimmerman, left, enters the courtroom for the start of day 13 of his trial in Seminole circuit court in Sanford, Fla. Wednesday, June 26, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

George Zimmerman, left, arrives in Seminole circuit court, with his wife Shellie, in Sanford, Fla., Monday, June 24, 2013. Zimmerman is accused in the fatal shooting of Trayvon Martin. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

Zimmerman trial photos — AP Photo/Orlando Sentinel, Joe Burbank, Pool

George Zimmerman, left, arrives in Seminole circuit court, with his wife Shellie, on the 11th day of his trial, in Sanford, Fla., Monday, June 24, 2013. Zimmerman is accused in the fatal shooting of Trayvon Martin. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

Tracy Martin, front left, Sybrina Fulton, center, parents of slain teen Trayvon Martin, and attorney Benjamin Crump, right, and family members, speak in a news conference prior to opening arguments in the trial of George Zimmerman at the Seminole County Courthouse, Monday, June 24, 2013, in Sanford, Fla. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

AP Photo/Orlando Sentinel, Joe Burbank/Pool

George Zimmerman waits for his defense counsel to arrive in Seminole circuit court for his trial, in Sanford, Fla., Monday, June 24, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

George Zimmerman enters the courtroom for his trial in Seminole County circuit court in Sanford, Fla. Tuesday, June 25, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

George Zimmerman, left, laughs with his attorney Don West during his trial in Seminole County circuit court in Sanford, Fla. Tuesday, June 25, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

Defense attorney Mark O'Mara, right, speaks with client George Zimmerman during his trial in Seminole County circuit court in Sanford, Fla. Tuesday, June 25, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

Trayvon Martin's parents, Tracy Martin, left, and Sybrina Fulton, enter the courtroom during George Zimmerman's trial in Seminole County circuit court in Sanford, Fla. Tuesday, June 25, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

Seminole County 911 dispatcher Sean Noffke testifies about his conversation with George Zimmerman on the non-emergency line on the night of the shooting of Trayvon Martin, during testimony in Seminole circuit court, on the 11th day of Zimmerman trial, in Sanford, Fla., Monday, June 24, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

The State of Florida shows photos of Trayvon Martin from the night of the shooting as evidence during George Zimmerman's trial in Seminole circuit court June 25, 2013 in Sanford, Florida. Zimmerman is charged with second-degree murder for the February 2012 shooting death of 17-year-old Trayvon Martin.

A video entered as evidence shows Trayvon Martin. right, at the 7-11 on the night of his encounter with George Zimmerman, on display in Seminole circuit court on the 11th day of the Zimmerman trial, in Sanford, Fla., Monday, June 24, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

Don West, a defense attorney for George Zimmerman, addresses the jury as he points to a map during opening statements in Seminole circuit court, in Sanford, Fla., Monday, June 24, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

AP Photo/Orlando Sentinel, Gary W. Green

Diana Smith, crime scene technician for the Sanford Police Department, shows George Zimmerman's gun, which was collected as evidence, to the jury during Zimmerman's trial in Seminole circuit court in Sanford, Fla. Tuesday, June 25, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

AP Photo/Orlando Sentinel, Gary W. Green, Pool

Diana Smith, crime scene technician for the Sanford Police Department, shows a bag of candy, which was collected as evidence, to the jury during George Zimmerman's trial in Seminole circuit court in Sanford, Fla. Tuesday, June 25, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

Diana Smith, crime scene technician for the Sanford Police Department, shows the jury a drink can which was collected as evidence at the crime scene, during George Zimmerman's trial in Seminole circuit court in Sanford, Fla. Tuesday, June 25, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

George Zimmerman sits in Seminole circuit court during his trial in Sanford, Fla. Wednesday, July 10, 2013.

George Zimmerman, right. is greeted by defense counsel Don West at the start of his trial in Seminole Circuit Court, in Sanford, Fla., Monday, July 8, 2013. Zimmerman is charged with second-degree murder in the fatal shooting of Trayvon Martin, an unarmed teen, in 2012.

Diana Smith, crime scene technician for the Sanford Police Department, shows the jury two plastic bags that were collected as evidence at the crime scene, during George Zimmerman's trial in Seminole circuit court June 25, 2013 in Sanford, Florida. Zimmerman is charged with second-degree murder for the February 2012 shooting death of 17-year-old Trayvon Martin

A transcript from George Zimmerman's police call on the night of the Trayvon Martin shooting is projected on a screen in Seminole circuit court furing George Zimmerman's trial, Monday, June 24, 2013 in Sanford, Fla. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

Defense attorney Don West displays a photo of Trayvon Martin's pants from the night he was shot, during opening statements in George Zimmerman's trial in Seminole circuit court in Sanford, Fla., Monday, June 24, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

George Zimmerman on trial

Assistant State Attorney John Guy points out defendant George Zimmerman during the state's opening argument in front of the jury in the Zimmerman trial, in Seminole circuit court, in Sanford, Fla., Monday, June 24, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.

George Zimmerman, center, enters the courtroom at the start of day 14 of his trial in Seminole circuit court in Sanford, Fla. Thursday, June 27, 2013.

George Zimmerman, left, talks to defense attorney Lorna Truett during his trial in Seminole circuit court in Sanford, Fla. Thursday, June 27, 2013.

George Zimmerman, right, speaks with defense attorney Mark O'Mara during his trial in Seminole circuit court in Sanford, Fla. Thursday, June 27, 2013.

George Zimmerman sits down at the start of day 14 of his trial in Seminole circuit court in Sanford, Fla. Thursday, June 27, 2013.

Witness Rachel Jeantel continues her testimony during George Zimmerman's trial in Seminole circuit court in Sanford, Fla. Thursday, June 27, 2013.

George Zimmerman, center, arrives for the 15th day of his trial in Seminole circuit court, in Sanford, Fla., Friday, June 28, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.