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, and firearm offenses stemming from their roles in the Gangster Disciples. The court held that the district court did not commit reversible error in admitting coconspirator statements under Federal Rule of Evidence 801(d)(2)(E), despite the government’s failure to provide a pretrial *Santiago* proffer and the district court’s conditional admission of evidence without sufficient prior evaluation. Applying a harmless error standard, the appellate court determined that any potential error in admitting specific hearsay statements was cured by abundant other evidence linking the defendants to the conspiracies and predicate acts, including communications furthering the gang’s leadership disputes and violence. The court also rejected challenges regarding the sufficiency of the evidence, finding that a rational trier of fact could have found all essential elements of the crimes proven beyond a reasonable doubt. Additionally, the court affirmed the denial of Maxwell’s motion to suppress a handgun, ruling that the collective knowledge doctrine justified the traffic stop and subsequent canine sniff, and found no error in the district court’s handling of juror impartiality issues or the admission of expert cell-site location data, noting any imprecision in the latter was harmless given the strength of the remaining evidence. The practical consequence is that the defendants’ convictions and life sentences stand.