This undated photo provided by the Chicago Police Department shows 25-year-old Donnell Flora. Flora is the third suspect charged in the slaying of 14-year-old Endia Martin of Chicago who police say was shot in the back by another 14-year-old during an argument over a boy. The girl accused of pulling the trigger and a 17-year-old boy accused of hiding the gun used in the shooting were charged earlier in the week. On Wednesday, April 30, 2014, authorities announced first-degree murder charges against Flora, the girl's uncle. He's accused of providing the handgun and accompanying the suspected shooter to the fight. (AP Photo/Chicago Police Department)
FILE - This combo made of undated file photos provided by the Chicago Police Department shows from left, Brent Vincent Betterly, of Oakland Park, Fla., Jared Chase, of Keene, N.H., and Brian Church, of Ft. Lauderdale, Fla. A jury in Chicago acquitted the three NATO summit protesters on Feb. 7, 2014 on Illinois terrorism charges, but did convict them on lesser arson counts. Sentencing for the three is expected to begin Friday, April 25, 2014. (AP Photo/Chicago Police Department, File)
This undated photo provided by the Chicago Police Department shows 23-year-old Justin Hamilton, of Flossmoor, Ill. Hamilton has been charged with two counts of first-degree murder in the deaths of two teenagers who were found shot in the head in the basement of a home on Chicago's South Side on Saturday, April 19, 2014. He is scheduled to appear in bond court Tuesday, April 22. (AP Photo/Chicago Police Department)
FILE - This combo made of undated file photos provided by the Chicago Police Department shows from left, Brent Vincent Betterly, of Oakland Park, Fla., Jared Chase, of Keene, N.H., and Brian Church, of Ft. Lauderdale, Fla. On Friday, Feb. 7, 2014, a jury in Chicago acquitted the three NATO summit protesters of breaking Illinois' rarely tested state terrorism law, but did convict them on lesser arson counts. (AP Photo/Chicago Police Department, File)
FILE - This combo made from undated booking photos provided by the Chicago Police Department shows Michael Ward, 18, left, and Kenneth Williams, 20, both of Chicago. The two men are charged with murder in the death of 15-year-old Hadiya Pendleton, of Chicago, who was shot to death Jan. 29, 2013 in a park about a mile from President Barack Obama's home on Chicago's South Side. Hadiya was laid to rest one year ago on Feb. 9, 2013. Since her death, the number of homicides and other violent crimes that turned Chicago into a national symbol of gun violence have fallen sharply. (AP Photo/Chicago Police Department, File)
FILE - This combo made of undated file photos provided by the Chicago Police Department shows from left, Brent Vincent Betterly, of Oakland Park, Fla., Jared Chase, of Keene, N.H., and Brian Church, of Ft. Lauderdale, Fla. On Thursday, Feb. 6, 2014, closing are scheduled at Cook County Circuit Court in Chicago for the three men who are charged under Illinois terrorism statutes with plotting Molotov cocktail attacks during the 2012 NATO summit in Chicago. (AP Photo/Chicago Police Department, File)
FILE - This combo made of undated file photos provided by the Chicago Police Department shows from left, Brent Vincent Betterly, of Oakland Park, Fla., Jared Chase, of Keene, N.H., and Brian Church, of Ft. Lauderdale, Fla. Opening statements are scheduled to begin Tuesday, Jan. 21, 2014, at Cook County Circuit Court in Chicago at the trial of the three men, who are charged under Illinois terrorism statutes with plotting Molotov cocktail attacks during the 2012 NATO summit in Chicago. (AP Photo/Chicago Police Department, File)