University of Texas at Arlington police picked up Daniel Wayne Staley on a mental health warrant Saturday.
He's the man who was arrested in 2010 for digging up a grave in Dallas and stealing a foot from the corpse.
Staley has been diagnosed with multiple mental disorders. He was released in Fort Worth a week ago, despite family members and police warning he cold hurt someone, based on writings in his journal.
"Danny is going to kill someone," his father, Russell Staley, told News 8 in March. "It's just a matter of time."