In April, authorities acting on a tip said they found charred piles of wood and bone on a five-acre patch of Logan County, opening one of the grisliest and most sensitive criminal investigations in Oklahoma's recent history. Behind the 10-foot metal walls of a compound with links to the Universal Aryan Brotherhood, a white-supremacist prison gang, officers found what they believe to be a body dumping ground where multiple people ended up dismembered and burned. "We're just trying to keep some people alive at this point," [an] official said, describing the struggle to protect potential witnesses. That level of danger is a jarring reminder of the unseen threat of white-supremacist prison gangs, whose leaders run crime syndicates from behind bars through a network of "enforcers" on the outside. The gangs have carried out hate-fueled attacks both in and out of prison, with the bulk of their free-world violence targeting rivals and informants. Because the gangs typically keep their business within the criminal underground, the attacks go largely undiscussed in the broader national conversation. The UAB is known to be a major player in Oklahoma meth trafficking, according to authorities and a 2018 federal indictment of 18 members on racketeering charges. The indictment, one of the most detailed public accounts of UAB operations, accused the gang of distributing an estimated 2,500 kilos of meth annually in Oklahoma, and laid out related crimes such as "murder, kidnapping, witness intimidation, home invasions."