08/03/2016 03:51 EDT | Updated 08/03/2016 03:59 EDT

JonBenet Ramsey's Brother Burke To Discuss Sister's Death On 'Dr. Phil'

LOS ANGELES — The brother of JonBenet Ramsey will publicly discuss his younger sister's death for the first time in an interview to be broadcast on "Dr. Phil'' next month.

Burke Ramsey was nine years old when his six-year-old sister was found dead in the basement of the family's Boulder, Colo., home on Dec. 26, 1996. Public suspicion immediately focused on the girl's parents, John and Patty Ramsey, and Burke.

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John Ramsey (R) puts his hand on the shoulder of his son Burke as they follow the casket of his wife Patsy Ramsey out of the church in Roswell, Georgia June 29, 2006. The mother of slain beauty pageant contestant JonBenet Ramsey, whose murder was never solved, died over the weekend after a long battle with ovarian cancer. (Photo: Reuters/Tami Chappell)

In 2008, the three were officially cleared by prosecutors who said that DNA found on the girl's underwear didn't match anyone in the family.

In announcing the appearance, the "Dr. Phil'' show says the now 29-year-old Burke will reveal what he knows about JonBenet's death.

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The site where six-year-old JonBenet Ramsey was killed in Boulder, Colo, 1996. (Photo: Karl Gehring/Liaison)

The interview is set to air over three programs beginning Sept. 12.