JonBenet Ramsey's Brother Burke Reveals Why He Stayed in His Room After Sister Went Missing

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Burke Ramsey is still answering questions about that night.

JonBenet Ramsey's brother -- who was nine years old when his 6-year-old beauty pageant sister was found dead in the basement of their family's Colorado home on Dec. 26, 1996 -- sits down with Dr. Phil in a three-part interview for the TV host's season premiere, where he explains why he chose not to leave his room after hearing that his sister was missing.

EXCLUSIVE: Dr. Phil Asks Burke Ramsey If He Murdered JonBenet in Upcoming Interview

"I guess I kinda like to avoid conflict," Burke tells Dr. Phil. "Part of me doesn't wanna know what's going on."

"The first thing I remember is my mom bursting in my room really frantic," the now 29-year-old adds. "The next thing I remember is a police officer coming into my room, shining a flashlight."

"I remember her saying, 'Where's my baby? Where's my baby?'" Burke continues.

WATCH: JonBenet Ramsey's Brother Speaks Out on Sister's Unsolved Murder Nearly 20 Years After Her Death

As the 20th anniversary of his sister's death approaches, Burke seeks to remind Dr. Phil that he was very young when she was killed.

"I don't think I fully grasped, 'After this I won't see her again,'" Burke said of attending JonBenet's funeral. "That was traumatizing."

WATCH: JonBenet Ramsey's Brother Breaks His Silence Nearly 20 Years After Sister's Death

JonBenet's murder remains one of the most perplexing and highly discussed unsolved mysteries in American history. Her parents, John and Patsy Ramsey, made the first call to police after she disappeared, claiming to have found a note demanding $118,000 in ransom.

Hours after police completed a search of their home, John found his daughter's body. John and Patsy -- who died in of ovarian cancer in 2006 -- were primary suspects for over a decade until police cleared them, as well as Burke, of any wrongdoing in 2008.

WATCH: Barbara Walters Revisits the Questions Surrounding JonBenet Ramsey Case

Watch the video below for why the JonBenet case still fascinates the public.

Dr. Phil's three-part interview with Burke Ramsey begins on the Sept. 12 season premiere.