The investigation into the disappearance of missing Kelsey Berreth moved to her fiance Patrick Frazee’s Florissant, Colorado, home Friday, where the 29-year-old mom dropped off her baby before vanishing. Detectives searched for the home for clues and Frazee’s lawyer insists the fiance is cooperating with them.

Nancy Grace looks at the case with experts including Atlanta juvenile judge & lawyer Ashley Willcott, forensics expert Karen Smith, forensic psychiatrist Dr. Daniel Bober, and CrimeOnline.com reporter Ellen Killoran.

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DEVELOPING: No arrests yet in Kelsey Berreth missing person case as fiance Patrick Frazee is present during search of his home

Grace also continues digging into the evidence that helped investigators conclude that Colorado dad Chris Watts murdered his pregnant wife, Shanann Watts, and their two young daughters. Her panel includes forensics expert Joseph Scott Morgan — author of “Blood Beneath My Feet,” North Carolina family and divorce lawyer Kathleen Murphy, New York Psychologist Caryn Stark, and RadarOnline.com Alexis Tereszcuk.

‘I can’t do this alone’: Texts show an increasingly distraught Shanann Watts worried about having a third baby as killer husband turns cold on her

“Crime Stories with Nancy Grace” is also a national radio show heard on SiriusXM channel 111 airing for two hours daily starting at 12 p.m. ET and around the country on local radio stations. You can also subscribe and download the daily podcasts at Apple Podcasts and Google Play.

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[Feature Photo: Kelsey Berreth/Handout]