Arizona man planned a mass shooting targeting African Americans at an Atlanta concert to incite a...

An Arizona man planned a mass shooting targeting African Americans and other minorities at a rap concert in Atlanta in May, looking to incite a race war ahead of the presidential election, federal authorities said.

Mark Adams Prieto was indicted by a federal grand jury Tuesday on charges of firearms trafficking, transfer of a firearm for use in a hate crime and possession of an unregistered firearm. The indictment follows a monthslong investigation by the FBI that ended with his arrest last month, the Justice Department said. A spokesperson for the agency said Prieto is in the custody of the U.S. Marshals Service for transport from New Mexico to Arizona. His attorney did not immediately respond to a request for comment.