The family of former NFL player Pat Tillman issued a statement after his brother was arrested in connection with a fiery crash at a post office.

The U.S. Postal Service is now leading the investigation and told KPIX-TV that Richard Tillman is the brother of Pat Tillman. U.S. Postal Inspector Matthew Norfleet told the outlet that the motive for the alleged arson is under investigation. Photos from the scene show the words “Viva la me” were spray-painted on the front of the building.