They are scheduled to appear in bond court Friday afternoon. Aramis Beachem, 22, and Vito Richmond, 17, are both facing first degree murder charges.
More than 800 people gathered at St. Philip Neri Catholic Church back in August to mourn the death of the boy killed August 3 while playing basketball at Metcalfe Park on Chicago's South Side.
Police say the teen was not the intended target of the shooting.
A $9,000 reward was offered for information leading to an arrest.