Dog the Bounty Hunter—real name Duane Chapman—is grieving the loss of his grandson Anthony after his stepson Gregory Zecca fatally shot the 13-year-old, according to TMZ, in an accidental shooting.

Dog the Bounty Hunter's stepson Gregory Zecca allegedly shot his 13-year-old son Anthony, leading to the teenager's accidental death. The reality star's family member was killed at a Florida apartment on July 19.