In a different clip posted by Dr. Phil's show on Friday, Ramsey talks about how attention from the media impacted his life growing up.

"It's hard to miss the cameras and news trucks in your front yard, and we’d go to the supermarket sometimes and there’d be a tabloid with my picture [or] JonBenét’s picture plastered on the front or they would follow us around," Ramsey said. "Seeing that as a little kid is just kind of a chaotic nightmare, so I was pretty skeptical of any sort of media, like, it just made me a very private person."

Ramsey was 9 years old when his sister was murdered; he says he remembers his mom "bursting in my room, really frantic, saying, 'Oh my gosh! Oh my gosh! Oh my gosh!' running around my room—now I know looking for JonBenét."

Investigators have reviewed or investigated over 20,000 tips, letters, and emails regarding the case, according to the New York Daily News

It's the first time in the 20 years since JonBenét's death that Ramsey has spoken publicly. He says it will be his last.

The full interview will air Monday.