dennis murphy with the conclusion of "she never left." >> reporter: more than two decades after bonnie haimed, five years after her son unearthed her remains -- >> are you responsible -- >> bonnie's husband was charged with second-degree murder and pled not guilty. upon a conviction he was facing life in prison. while forensic evidence was missing, the detectives said there was one overwhelming fact -- circumstantial though it might be. >> a buried wife in your own back yard is a pretty hard piece of evidence for any defendant to overcome. >> the state believed it had an eyewitness to the alleged murder -- little aaron haim. but he couldn't remember that awful event. the judge ruled the social worker who interviewed aaron could testify, but not about the details of what aaron said, only about who he identified as the person who hurt his mother. >> did aaron indicate that his mother had been hurt? >> yes, he did. >> and did he identify who did that to his mother? >> yes, he did. >> who did he say? >> his daddy. his father. >> you guys had a good day on the stand with that testimony. >> oh, y