United Kingdom, July 22 -- Dog the Bounty Hunter's stepson Gregory Zecca has been placed on psychiatric hold after the death of his son.

Gregory - who is the son of the Duane 'Dog' Chapman's wife Francie Frane and her late husband - accidentally shot and killed his 13-year-old son Anthony on July 19, and has been left devastated by the tragedy.

A representative for the family told TMZ that Gregory is on a 5150 psychiatric hold over concerns for his wellbeing after Anthony's death.

The spokesperson noted that the decision was made because of the father's grief, not because of he feels guilty of a crime.

The Collier County Sheriff's Office are conducting an investigation into what they have described as an "isolated incident".

The poli...