Duane "Dog the Bounty Hunter" Chapman's stepson Gregory Zecca has been placed on a psychiatric hold after accidentally shooting his 13-year-old son, Anthony. A representative for the family confirmed the news to TMZ on Monday, July 21, telling the outlet that Zecca is under observation on a 5150 hold, meaning he has been involuntarily detained for 72 hours because of a mental health disorder, being a danger to himself, being a danger to others or being gravely disabled.