CHICAGO (AP) – Newly unsealed federal complaints say the purported leader of one of Chicago’s largest street gangs and more than 20 other alleged gang members face drug and gun trafficking charges. Prosecutors say 34-year-old Darnell McMiller is the current leader of the Black Disciples. The Wednesday filing says McMiller is accused of conspiring to distribute fentanyl-laced heroin on the city’s South Side. The suspects were arrested Tuesday. Twenty-two were charged with various drugs and firearms charges, while one faces bank fraud charges. The Chicago Crime Commission estimates there are more than 4,000 members of the Black Disciples gang in Chicago. The gang that formed around 1970 also has branches nationwide.