
An Arizona man allegedly planned a mass shooting at a May concert in Atlanta with the intent to incite a race war ahead of the presidential election, according to federal authorities. Mark Adams Prieto, 58, was indicted by a federal grand jury on Tuesday, June 11 on charges of firearms trafficking, transfer of a firearm for use in a hate crime and possession of an unregistered firearm, per a press release from U.S. Attorney's Office, District of Arizona. The indictment follows the FBI’s five-month investigation, which concluded with Prieto's arrest...