'America's Most Wanted' Host John Walsh Vows to Capture Brian Laundrie

John Walsh, a presenter familiar to millions as the host of America's Most Wanted, is lending his services to the hunt for Gabby Petito's boyfriend, Brian Laundrie.

Laundrie was thought to be staying at his parent's home in North Port, Florida, having previously refused to speak to investigators about his 22-year-old fiancée's disappearance.

However, on Friday his mother and father contacted the police to inform them that they had not seen their son since last Tuesday. Since then remains believed to be those of Petito have been found in a national forest in Wyoming while a major search is also underway for Laundrie.

Laundrie was last seen at the family home on Tuesday morning carrying a backpack. He told his family he was going for a hike. A day later his family found his car parked near Carlton Reserve.

On Monday, the FBI executed a search warrant on Laundrie's home and were later filmed carrying several large boxes away from the scene.

While Laundrie is not officially a fugitive but rather a person of interest, Walsh told News Nation Now he is joining the hunt to find the 23-year-old.

"I'm settling up to catch this dirtbag," he told the news provider.

"This is a homicide. This dirtbag is out there. I don't know how he got out of the house with the FBI and local cops watching him day and night."

Most famous for hosting America's Most Wanted during its initial 23-year run on Fox and Lifetime, according to his official website Walsh's show "helped law enforcement capture more than 1,200 fugitives and brought home more than 50 missing children."

Now the host of In Pursuit With John Walsh on Investigation Discovery, Walsh has promised to "focus in" on Laundrie on the next episode of the show.

Walsh also pledged to eventually turn his attention to Laundrie's parents who he believes bought their son "four days to get a head start'' by not notifying the police of his absence sooner.

"At some point, these parents are going to have to pay," he said. "They're going to have to pay for being an accessory for putting him on the run."

Former host of “America’s Most Wanted” John Walsh says he was “terrified” when he first saw police cam footage of Brian Laundrie and Gabby Petito.

“This is classic domestic abuse. He terrorized her not to tell the cops. He was the aggressor and slapper and puncher.” pic.twitter.com/MIU33x2VcU

— Anderson Cooper 360° (@AC360) September 21, 2021

During a previous interview with Anderson Cooper, Walsh said he was "terrified" when he first saw the police cam footage of Laundrie and Petito recorded by Moab City Police Department.

The footage was recorded by officers responding to a 911 call from someone who reported seeing Laundrie slap Petito.

Walsh said he examined the video with an "FBI friend" and summarized it as "classic domestic abuse."

"He terrorized her not to tell the cops. He was the aggressor and slapper and puncher."

Walsh also expressed his frustration that the concerns expressed on the original 911 call were not "translated" to the two deputy sheriffs that pulled the couple over.

"They let him go and in his report said that she was the aggressor," he told Cooper. "She was terrified. It was just chilling that those cops didn't get the information."

Despite this, Walsh believes that it is a matter of time before Laundrie is found.

"It's the public that will solve this case and I believe the public will catch this guy," he said. He also believes Laundrie, his family and their lawyer made a huge mistake by not speaking to investigators.

Walsh said: "He could have made a deal but now there's no deal for Brian they are gonna catch him and they are gonna throw the book at him and maybe the parents as well."

Newsweek contacted Walsh for comment.

TV host John Walsh and Brian Laundrie.
John Walsh during the Fox Summer 2006 TCA Press Tour/Gabby Petito's boyfriend Brian Laundrie - the America's Most Wanted host has joined the hunt for the 23-year-old. John Shearer/Getty/WireImage/Moab Police Department