Authorities search landfill for missing Colorado mom

COLORADO SPRINGS, Colorado (KTRK) -- The search for a missing Colorado mother has now expanded to a landfill.

The landfill is located 20 miles southeast of Colorado Springs.

Kelsey Berreth, 29, was last seen on Thanksgiving Day.

Investigators labeled her disappearance a presumed murder last month.

Even though her body has not been found, her fiancé, Patrick Frazee, has been charged with first-degree murder.

The couple shares a 1-year-old daughter.