OGDEN — A prison informant told Weber County investigators in 2006 that Douglas Lovell, the man who'd killed Joyce Yost in 1985 to prevent her from testifying in a sexual assault and kidnapping case, had lied to police about the location of Yost's body. "Doug told me every nook and cranny of everything," Jared Dee Briggs told investigators in a video recording of his Dec. 15, 2006, interview with investigators. KSL's investigative podcast series "Cold" obtained a copy of the video recorded at the Utah State Prison, which has not previously been made public. Lovell had admitted in 1993 to killing Yost. As part of plea negotiations, he led South Ogden police to the place where he'd claimed to have killed and buried Yost along the Old Snowbasin Road. An intensive search of that area subsequently failed to turn up any sign of Yost's remains.