Reality TV star Duane “Dog the Bounty Hunter” Chapman is on the scent of Brian Laundrie, who is the subject of an arrest warrant for activities following the death of his girlfriend, Gabby Petito.

Chapman, who successfully captured dozens of criminals on the run during his show Dog the Bounty Hunter, said he is investigating a tip that Laundrie and his parents went to a Florida campground 75 miles away from the family home in early September. The Laundrie family were said to have stayed in Fort De Soto Park twice between Sept. 1-3 and Sept. 6-8, and the second time only two people left, according to Chapman.