The brother of former NFL star Pat Tillman scrawled a strange message on a San Jose post office before he intentionally crashed his car into the building and set it on fire, according to investigators.

The United States Postal Service building in the 6500 block of Crown Boulevard in South San Jose is temporarily closed after sustaining major damage from a vehicle that was driven into the facility early Sunday morning.

The brother of the late NFL player and U.S. Army Ranger Pat Tillman is suspected of driving into a South San Jose post office early Sunday morning, officials said.