A Tennessee man accused of abusing and sexually exploiting children while actively participating in 764, a sprawling online nihilistic violent extremist collective affiliated with The Com, pleaded not guilty Thursday to a series of charges that could keep him locked up for 50 years. Zachary Sweeney has allegedly victimized multiple children , on numerous occasions grooming and coercing minors to produce child sexual abuse material that he distributed and sometimes sold, the Justice Department