Search for Kelsey's Berreth's Remains Brings Investigators to Colorado Landfill: Report

Kelsey Berreth has been missing since November

Searchers will likely spend months looking for any evidence possibly connected to Kelsey Berreth, the missing mother police believe was killed by the father of her child, Patrick Frazee.

Investigators in Colorado are reportedly planning to search a landfill for the remains of Kelsey Berreth, as well as look for any other evidence possibly connected to the missing mother, who police believe was killed by the father of her child.

Authorities on Tuesday will begin sifting through the Midway landfill near Fountain, beginning a search that could take several months to complete, sources told ABC News.

Waste Management of Colorado confirmed to ABC News in January the Colorado Bureau of Investigation contacted them “regarding a potential search at Midway Landfill.” The agency said it is fully cooperating.

Berreth was last seen alive Thanksgiving Day when surveillance footage captured her entering a Safeway with her 1-year-old daughter. It was the last confirmed sighting of the 29-year-old flight instructor.

Berreth’s mother reported her missing Dec. 2. Her body has never been found. 

Gregg Slater, an agent for the Colorado Bureau of Investigation, testified this week that authorities believe Patrick Frazee murdered Berreth in her home and then burned her body on his property in Florissant. 

Police said Frazee’s new girlfriend, Krystal Lee Kenney, told them he “scooped Berreth’s remains up and was going to take them to the dump or take them to the river.”

Kenney, a former nurse from Idaho, pleaded guilty to evidence tampering because she transported Berreth’s phone from Colorado to Idaho. She will testify against Frazee at his upcoming trial. She will not be sentenced until after Frazee’s trial.

Frazee, 32, on Tuesday was charged with tampering with a body and counts related to a crime of violence. He already faced two counts of first-degree murder and three counts of solicitation to commit murder in the first degree. He has not yet entered a plea to the charges.