Evidence of Missing Colorado Mom Kelsey Berreth Found in Idaho: Authorities

Authorities in Idaho revealed this weekend they'd shared information with the FBI.

Evidence of missing Colorado mom Kelsey Berreth has been found in Idaho, authorities there revealed this weekend.

On Saturday, the police department in Twin Falls, Idaho, said in a statement that its officers helped the Colorado Bureau of Investigation and the FBI "to prepare and serve several search warrants as well as processing some items of evidence."

The department did not say what evidence may have been found.

Twin Falls' Sheriff Tom Carter and Police Chief Craig Kingsbury said in a joint statement, “We are pleased our organizations were able to provide the assistance and support requested by the FBI, CBI, and the Woodland Park Police Department.”

Berreth, a 29-year-old flight instructor, was last seen at a Safeway supermarket in Woodland Park, Colorado, with her 1-year-old daughter on Nov. 22. Her fiance, Patrick Frazee, told authorities Berreth dropped off their daughter at his home that day. They do not live together.

Three days later, her cellphone pinged near Gooding, Idaho, which is about 40 miles north of Twin Falls.

On Friday, Frazee was arrested in connection with her disappearance at his Florissant home. Authorities had conducted a search at the property the weekend prior.

"Sadly, we do not believe Kelsey is still alive," Woodland Park Police Chief Miles De Young said at a press conference Friday. 

Berreth’s cousin, Jodi Garretson, told Inside Edition’s Senior Correspondent Les Trent that her parents were “absolutely devastated” by the development in the investigation

“I can’t even fully comprehend how horrible they have to be feeling,” Garretson said. “That’s their only daughter.”

Frazee was charged with first-degree murder and solicitation to commit first-degree murder. He is being held without bond and is due back in court on Dec. 31.

District Attorney Dan May would not elaborate on the circumstances behind his being charged with solicitation to commit murder, but said it is a crime to solicit somebody to commit another crime.

Berreth's child was taken into protective custody and will be reunited with Berreth's family, police said Friday.