Burke Ramsey responded to people who still believe that he killed his younger sister, JonBenét Ramsey, during the final segment of his three-part interview with Dr. Phil on Monday, September 19.

The 6-year-old beauty queen was found dead in the basement of their parents’ Boulder, Colorado, home on Christmas Day in 1996, and the 20th anniversary of the case has sparked renewed interest in the murder.

“There still are people that believe that you killed your sister. What do you say about that?” the talk show host, 66, asked Ramsey, 29, who replied, “Look at the evidence or the lack thereof.”

Although Burke, who was 9 at the time of the murder, was never a suspect and was cleared through DNA evidence, Dr. Phil pressed the subject. "Part of their rationale, these people, say you are the only one that your parents would go to the lengths they went to to cover up everything that happened. When they say 'covered up,' they’re talking about fabricating this ransom note, if she was strangled, then causing the head injury,” he said. "Doing all of this cover-up was all done to protect you because they didn’t want to lose two children. That’s their theory.”

Burke replied, “I don’t know what to say to that because I know that’s not what happened. There’s been a few people that said that’s not even physically possible for a 9-year-old to do that.”

Dr. Phil also asked if the software engineer feels like his sister is watching over him now. “Yeah, and my mom and my grandma,” he said. His mother, Patsy Ramsey, who was also initially under suspicion, died of ovarian cancer in 2006.

“Sometimes I would talk to her,” he said of his late sibling. “Like there’s some important thing I was doing, [I’d] be like, ‘Hey, thanks for looking out for me’ or ‘I hope you’re looking out for me,’ or you know, ‘Hope you’re having fun up there because I’m taking some test,' or like, ‘I wish I was up there right now.’"

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