The family of NFL player-turned-war hero Pat Tillman acknowledged Monday that his brother Richard Tillman was arrested and accused of driving into a California post office Sunday

Richard Tillman, a brother of Pat Tillman, faces a hearing in connection with a crash near San Jose, California, that caused a fire at a post office.

U.S. postal inspectors and San Jose Fire Dept. investigators on Monday continued searching for a motive to what they said was an intentional crash and fire by Richard Tillman, the brother of former NFL star Pat Tillman who died in 2002 due to friendly fire in Afghanistan.