Missing Colorado mom Kelsey Berreth still has not been found. While authorities suspect that she was murdered by her fiancé Patrick Frazee, her body or remains have yet to be located.

Berreth disappeared on Thanksgiving Day and was last seen at a Woodland Park, Colorado, Safeway grocery store. Frazee is suspected to be the last person that saw her alive as Berreth dropped their daughter Kaylee off with him.

Berreth’s mother reported her missing on Dec. 2, requesting a welfare check. The Safeway surveillance footage is the last known whereabouts of her daughter.

On Dec. 10, Berreth’s mother Cheryl-Lee Berreth holds a news conference where she emotionally pleads for the safe return of her daughter.

Frazee’s attorney releases a statement on Dec. 12 saying that he is cooperating with the investigation by voluntarily releasing his phone, submitting to DNA swabs, and providing photographs.

Investigators arrived at Frazee’s home for an initial investigation on Dec. 14. They returned to the 35-acre Florissant, Colorado, ranch property again on Dec. 16 and 18 for further investigations.

On Dec. 15, a $25,000 reward was offered for information leading to the return of Berreth by Woodland Park police department.

The Twin Falls, Idaho, police department requested the assistance of the FBI and Colorado Bureau of Investigation on Dec. 22. Here, several search warrants were served and evidence was processed as part of the investigation into Berreth’s whereabouts.

Frazee was arrested for murder and solicitation for murder on Dec. 21, after officials searched his home. On Dec. 24, Frazee’s public defenders requested that case investigators turn over text messages and emails they recovered during their investigation.

Frazee was charged with five counts, including two counts of first-degree murder and three counts of solicitation to commit first-degree murder, on Dec. 31.

A custody battle between Berreth’s and Frazee parents occurred on Dec. 27. A second hearing was held on Jan. 3, where the court ruled that one-year-old Kaylee would remain in the custody of Berreth’s parents and child protective services. Frazee’s mother has since filed a motion to change the decision.

An Idaho woman was investigated in the case on Jan. 3, for allegedly disposing of Berreth’s cell phone, which pinged off a Gooding, Idaho, cell tower three days after her disappearance. The woman is a 32-year-old nurse from Twin Falls, Idaho.

On Jan. 5, Berreth’s parents, Darrell and Cheryl-Lee Berreth, filed a wrongful death suit against Frazee in the U.S. District Court for the District of Colorado. They have requested unspecified damages against Frazee.