Gabby’s body was tragically found on September 19 and authorities say her death is being treated as a homicide.
Dog – real name Duane Chapman – joined the search for Brian, 23 last week after he was reported missing by his parents on September 17.
Dog says he has been inundated with tips and potential clues to the missing man’s whereabouts.
Brian returned home to Florida without Gabby on September 1 before being reported missing by his parents several weeks later.
The FBI are leading the case to find him and have been searching in a reserve five miles away from his home which is well known for being home to alligators.
Following tweets released by the bail bondsman’s daughter, Lyssa, on Monday, Dog has gone public with his alleged findings.
Lyssa wrote: “I can CONFIRM @DogBountyHunter has a HOT lead on Brian’s location. Dad has alerted the proper authorities. Say a prayer guys. This could be it.”
She urged the public to keep their tips coming in and said that they had by no means caught him.
Talking to Fox News, Dog said that he believed he had located a camp site where Brian and his parents had stayed in early September, after he returned from his fateful cross-country trip with his partner.
He said that he had been told the family had spent the night in Fort De Soto Park near St Petersburg, which is 75 miles north of their North Port home.
Dog went on to claim that the family had been to the spot with their son twice in early September.
“They were registered, went through the gate. They’re on camera. They were here,” he said.
“We think at least if he’s not here right now, we are sure he was caught on camera as he went in the gate — that he was here for sure. Not over in the swamp.”
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He continued: “Allegedly, what we’re hearing, is two people left on the 8th.
“Three people came in on the 6th, and two people left on the 8th. I think he’s been here for sure.”
There has been no comment on Dog’s allegations by the FBI.
Lyssa said her dad was so intent on helping out on the case following the death of his eldest daughter.
She said: “Please remember my sister Barbara Katie was taken away at the exact age as Gabby was. This is why dad has taken this case so personally.”