Mark Adams Prieto wasn’t the most clandestine about his plans to incite a race war, the FBI says. The 58-year-old, who was arrested last month, unknowingly blabbed to an FBI agent about his spine-chilling plan to shoot up a rap concert and even allegedly sold two automatic rifles to the agent on the assumption that they were going to help him realize his terrifying plans.
That’s according to an indictment unsealed by the U.S. Attorney’s Office of Arizona on Tuesday, charging Prieto with firearms trafficking, transfer of a firearm for use in a hate crime, and possession of an unregistered firearm.
Prieto, of Prescott, Arizona, a small retirement community nestled in the North West corner of the state, began expressing his violent plans against minority groups to an informant at a weapons show in 2023, the indictment says.