Kelsey Berreth's parents have sued her fiance, Patrick Frazee, who's accused of killing her.
Berreth, 29, was last seen at a Safeway supermarket in Woodland Park, Colorado, with her 1-year-old daughter, Kaylee, on Nov. 22. Though authorities strongly believe she is dead, her body has not yet been found.
Berreth's parents, Cheryl and Darrell, filed a wrongful death lawsuit Friday, seeking unspecified damages against 32-year-old Frazee, according to The Associated Press.
Frazee is also charged with two counts of first-degree murder and three counts of solicitation to commit murder.
Frazee is being held without bond at the Teller County Jail in Divide. He has not yet entered a plea to the charges filed against him. He is expected to do so at a Jan. 29 hearing.