The seventh circuit affirmed the convictions and life sentences of four defendants (Frank Smith, Warren Griffin, Sean Clemon, and Dominque Maxwell) for racketeering conspiracy, murder in aid of racketeering, attempted murder in aid of racketeering, and firearm offenses arising from their roles in the Gangster Disciples. The court held that although the district court erred by failing to require a pretrial “Santiago proffer” to evaluate the admissibility of numerous coconspirator statements under Federal Rule of Evidence 801(d)(2)(E), this procedural misstep did not result in reversible error because the defendants failed to identify specific inadmissible statements that affected the trial outcome, and any potential errors were harmless. The court further held that the evidence was sufficient to support all convictions, finding ample proof of the defendants’ participation in the conspiracy and predicate acts, including murders and drug trafficking. Additionally, the court affirmed the denial of Maxwell’s motion to suppress a handgun, ruling that the traffic stop was lawful under the collective knowledge doctrine and the canine sniff did not unreasonably prolong the detention. The court also found no error in the district court’s handling of a prospective juror’s comment during voir dire or in the admission of testimony from a cooperating witness. Consequently, the defendants’ convictions and sentences remain in effect.