Everybodys did. What had happened to his mom . I still wake up in the middle of the night. Haunted for more than two decades, he would make a chilling discovery that would unlock this mystery. Now you know the whole story. Yes, sir. And everything kind of clicked. Its just so unbelievable. I knew he was telling his moms story. Hello, and welcome to dateline. Aaron fraser was only 3 years old when his mom left the house never to be seen or heard from again. Police soon learned that aaron may have witnessed the unspeakable the murder of his own mother. The boy would become a man before the whole truth was revealed. And though memories faded, the evidence pointing to the killer couldnt stay buried. Heres Dennis Murphy with she never left. Shed been gone, unaccounted for for more than 20 years. His mother, bonnie. It was odd to be the one that took to be the one that found her. Youd spent a lot of your life looking for her, right . Yes, sir. Theres a poignant video of the mother and childs