"The complaint says Black told authorities that over the summer he received money for the Smith & Wesson M&P 15 rifle from Rittenhouse, his friend, who was too young to have legally purchased the weapon himself. .. According to the criminal complaint against Black, the weapon used in the shootings was purchased on May 1 at the Wisconsin gun store Ladysmith Ace Home Center by Black, who prosecutors claim was “aware” Rittenhouse could not have made the purchase himself. Since Rittenhouse was an Illinois resident he also did not have an Illinois Firearm Owner Identification card, so the pair agreed to have the weapon stored at Black’s stepfather’s house in Kenosha, the complaint says. .. The pair went to Black’s stepfather’s house on Aug. 25, the complaint says, where Black gave Rittenhouse the gun."