Thanksgiving, 2018, Kelsey Berreth talks with her mother that morning and is then seen on video at a local grocery.

Two days later, text messages from Berreth's phone were sent to Patrick Frazee, Berreth's fiance, her mother, and her boss, saying she was taking a few days off. After not hearing from her daughter in over a week, Cheryl Berreth asks the police to check on her daughter. Kelsey Berreth is missing.

The investigation into Berreth's disappearance goes on for a month before Patrick Frazee is arrested, and charged with murdering the woman he was supposed to marry. One of the breaks for police was information coming from Frazee's mistress Krystal Lee Kenney.

She tells police that Frazee had asked her three times to kill Berreth and when she refused, he did it himself. Frazee blindfolded Berreth on the pretense of a game of guessing the scent. He then bludgeoned her with a baseball bat, calling Kenney and telling her she had a mess to clean up.

She drives from her home in Idaho to Colorado to clean up the bloody crime scene. She tells police she accompanied Frazee to his nearby ranch, where she said he burned Berreth’s remains as well as her personal belongings.

Frazee is convicted on all charges including first-degree murder, solicitation for murder, and tampering with a deceased human body. He was sentenced to life in prison without the possibility of parole for the murder charge, plus 156 years for the other convictions. His appeal was denied

Krystal Lee Kenney accepted a plea deal in exchange for her testimony against Frazee. She was sentenced to three years in prison. After Frazee's conviction, Kenney was sentenced to 18 months in prison for evidence tampering. She has now been released.

Joining Nancy Grace Today:

• Eric Faddis - Partner at Varner Faddis Elite Legal, Former Felony Prosecutor and Current Criminal Defense and Civil Litigation Attorney; Instagram: @e_fad @varnerfaddis; TikTok: @varnerfaddis
• Dr. Jorey L. Krawczyn - Police Psychologist, Adjunct Faculty with Saint Leo University; Research Consultant with Blue Wall Institute, Author: Operation S.O.S. - Practical Recommendations to Help “Stop Officer Suicide”
• Sheryl McCollum - CSI, Cold Case Investigative Research Institute Founder; Host of "Zone 7;" Twitter: @149Zone7
• Dr. Tim Gallagher– Medical Examiner, State of Florida; Lecturer: University of Florida Medical School Forensic Medicine; Founder/Host: International Forensic Medicine Death Investigation Conference
• Alexis Tereszcuk - CrimeOnline.com Investigative Reporter, Writer/Fact Checker, Lead Stories; Twitter: @swimmie2009

See omnystudio.com/listener for privacy information.