Four weeks after a young Colorado mom was last seen alive, police arrested her fiance and now say they believe Kelsey Berreth is dead.
Berreth, 29, was last seen at a supermarket on Nov. 22 near her home in Woodland Park, police said.
Below is a timeline of the investigation so far:
Thursday, Nov. 22
Surveillance footage from Safeway supermarket showed Berreth shopping for groceries with her 1-year-old daughter about 12:30 p.m., police said.
“That’s the last time Kelsey was seen,” Woodlawn Park Police Chief Miles De Young would go on to tell reporters.
De Young also noted that Berreth’s fiance and the father of her daughter, Patrick Frazee, told investigators he saw Berreth that day when she handed off their child to him.
Sunday, Nov. 25
Berreth’s employer, Doss Aviation, received texts from her cellphone saying she would not be at work for the next week, police said. Berreth worked as a pilot instructor.
Investigators were able to determine Berreth’s cellphone pinged that day on a tower near Gooding, Idaho, about 600 miles from her home in Woodland Park.
Frazee told police he received a text from Berreth’s phone that same day. Investigators have not revealed what that message said.
Sunday, Dec. 2
Kelsey’s mother, Cheryl Berreth, reported her daughter missing after being unable to reach her. Cheryl reached out to Frazee, who called her back and said he hadn’t heard from her since she had last texted.
Officers with the Woodlawn Park Police conducted a community care takers search on Kelsey’s home, which was empty. Her cars, her clothes and her toothbrush all appeared untouched since Thanksgiving, authorities said.
Monday, Dec. 3
The Woodland Park Police Department sent out its first appeal to the public in the hopes that someone would have information about Kelsey’s whereabouts.
“Please contact the Woodland Park Police Department at 719-687-9262,” they wrote.
Wednesday, Dec. 5
Kelsey’s loved ones created the “Missing Mother – Kelsey Berreth” Facebook page to spread the word about her disappearance.
The Woodland Park Police note Kelsey had last been seen wearing a white shirt, gray sweater, blue pants that may have been jeans, white shoes and had a brown purse.
Thursday, Dec. 6
Kelsey’s family noted it would be out of character for her to not let anyone know if she planned on making flying cross-country, regardless of her experience in the air.
“She does not own a plane nor do we know of any local friends that she would borrow one from,” they wrote on Facebook. “I don't believe she has ever made a flight without filing a flight plan. We do realize that it is possible to rent a plane, but I believe someone would be missing it by now.”
Friday, Dec. 7
A prayer vigil was held for Kelsey outside her brother’s home in Tacoma, Washington. Friends and neighbors came together to show their support, holding candles and singing “Silent Night,” video of the gathering showed.
“Please keep praying!” her family said on Facebook. “We need to find Kelsey!”
Monday, Dec. 10
The Woodland Park Police Department was joined by Cheryl for a press conference to share what they know so far.
De Young said the department is working with numerous law enforcement authorities, including the Colorado Bureau of Investigation, the FBI and officials in Gooding, Idaho.
All planes at her place of work have been accounted for, and there is nothing that indicates that Kelsey flew somewhere.
No one has been identified as a suspect in Kelsey’s disappearance, De Young said.
He said that Kelsey’s fiancé, Frazee, was invited to the press conference, but did not come.
“That’s a question you would have to ask him,” De Young said of Frazee’s decision to not attend.
Frazee is cooperating with police and is watching over his and Kelsey’s young daughter, De Young said. Kelsey has never lived with Frazee, her mother told reporters.
“I’d just like to talk to you a little bit about Kelsey,” she said. “She’s not the kind that runs off. This is completely out of character.
“Kelsey loves her god, she loves her family and friends, and she loves her job,” Cheryl continued. “She’s reliable, considerate and honest. … She doesn’t run off, and someone knows where she’s at.”
Tuesday, Dec. 11
Woodland Park police released the last-known footage that captured Kelsey before she disappeared.
In the video, you can see the young mother enter the Safeway supermarket. She carries her daughter in what appears to be a car seat that she then placed into a shopping cart before walking further into the store, the video shows.
Thursday, Dec. 13
Kelsey's mother, Cheryl, spoke to NBC, saying she is hopeful her daughter will be found.
“I can’t think of anywhere she’s gone where she hasn’t told me,” Cheryl told NBC. “It’s just not in her character to do something, to just take off and be gone.”
Cheryl said she spoke with her daughter twice on Thanksgiving, including once when Kelsey needed the details of a recipe.
“Her voice was fine,” her mother said. “It was a normal day for her.”
Cheryl said her daughter did not live with her fiance, Frazee, but that they have a strong bond.
“The relationship has been good,” said Cheryl. “They’re loving.”
Frazee's attorney, Jeremy Loew, told NBC his client is cooperating with police. Frazee voluntarily released his phone to be searched by investigators and has provided cheek swabs for DNA samples, he said.
Frazee wasn't present at a press conference held on Kelsey's case Monday because he only learned of it an hour before, his attorney said, noting he would have gone had he more notice. Loew said he also advised Frazee against speaking publicly to avoid tainting the investigation.
Resolute that someone somewhere knows something, Cheryl said she's committed to remaining positive.
“I still know somebody knows where she’s at,” Cheryl said. “Somebody has seen her. There’s more information out there. Somebody just needs to realize, recognize, say something.
"In the back of mind, sure, there's a possibility something else could have happened," she continued. "But it does me no good to go down that road. And I don't think it does Kelsey any good either."
The Woodland Park community gathered that evening for a candlelight vigil at the flagpole at Memorial Park in a show of solidarity to Kelsey's loved ones.
"We just want to spread love and hope and let Kelsey and her loved ones know that we're here for them," vigil organizer Amber Overton told The Denver Channel.
The dozens of people who came together were joined by Kelsey's mother, as well as De Young, who told the crowd a reward is being offered for information in the case. Specifics were reportedly not provided.
Friday, Dec. 14
Law enforcement officers executed a search warrant at Frazee's home, officials said.
Deputies with the Teller County Sheriff’s Office cut the lock on Frazee’s gate in Florissant before beginning their search of his home Friday, KRDO-TV reported. More than 75 law enforcement officials participated in the search.
Officials said the search could take up to three days. Frazee was at the property and was not under arrest, deputies told KXRM-TV.
But Frazee was never asked to voluntarily participate in the search executed at his home Friday, Frazee's attorney told the news station.
“We encourage law enforcement to take whatever steps it deems necessary to find Kelsey Berreth and to be able to exclude Patrick Frazee as a possible suspect in this missing person investigation,” he said in a statement. "Mr. Frazee will continue not to participate in any interviews with the media and instead focus on parenting the child he shares with Ms. Berreth.”
Sunday, Dec. 16
Authorities completed the search at Frazee's home. It’s not clear what they may have found there, if anything.
The Woodland Park Police Department announced a $25,000 reward for any information about Kelsey's whereabouts. The reward came from an anonymous donor, authorities said in a press release.
Tuesday, Dec. 18
Investigators briefly returned to Frazee's property Tuesday, but police said the visit was a routine follow-up, The Denver Post reported.
Authorities said they were continuing to "make steady progress" and were following multiple leads into Kelsey's disappearance.
The warrant issued in the search is sealed and no details are available to the public.
As investigators continued their search for Kelsey, a friend of Frazee's came to his defense.
Sonja Oliver, who says she has known Frazee for five years, told Inside Edition, "I've always considered him to be a gentle soul. Soft spoken and just really down to Earth and practical."
Oliver said she “couldn’t imagine him doing anything that would harm anyone.”
When asked by Inside Edition if she believes he had anything to do with Kelsey's disappearance, Oliver again stated, “I just can't imagine Patrick doing anything like that.”
Frazee's attorney told Inside Edition his client and Kelsey's relationship was largely positive.
“Like most relationships it has ups and downs but for the most part it's a good relationship,” he said.
Friday, Dec. 21
Frazee was taken into custody about 7 a.m. local time and was charged with murder and solicitation to commit murder, Woodland Park Police Chief Miles De Young said at a press conference.
"Sadly, we do not believe Kelsey is still alive," he told reporters.
Investigators have not yet located Kelsey's body, but they believe she may have been killed in her Woodland Park home.
De Young said police had conducted multiple interviews that gave them enough information to implicate Frazee in her death and obtain a warrant for his arrest. A multijurisdictional task force made up of numerous law enforcement agencies, including the FBI, served the warrant at Frazee's 35-acre ranch in Florissant.
His and Kelsey's 1-year-old daughter was in protective custody Friday and will be reunited with her mother's family, De Young said.
Authorities have confirmed that Kelsey's cellphone is in fact in Idaho, but were not able to elaborate on how it got there.
Frazee is being held without bond and will appear in court Dec. 31.
Saturday, Dec. 22
Authorities in Twin Falls, Idaho, said in a statement that its officers helped the Colorado Bureau of Investigations 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.”
Thursday, Dec. 27
Frazee appeared in court, shackled and looking disheveled, for an emergency custody hearing regarding his daughter, Kaylee.
The judge granted temporary custody to Kelsey's parents.
Monday, Dec. 31
Frazee was formally charged with Kelsey's murder. The complaint, which featured little in the way of details, included three charges of solicitation to commit murder, as well as two charges of first-degree murder.
Fourth Judicial District Attorney Dan May said that the two murder charges represent two separate theories of how Kelsey was killed. One of the murder charges mentions an accusation of robbery, indicating she was killed during the commission of a separate crime.
The other murder charge alleges Frazee himself deliberately caused the death of Kelsey with intent to do so.
“Obviously, there’s only one murder in this case,” May told KMGH-TV. “Under Colorado law, we file separate counts under different theories of first-degree murder. We filed under two theories: One is deliberation for murder. And the other is felony murder.”
Thursday, Jan. 3
A report emerged that an Idaho nurse, who was not identified, was being investigated for possibly disposing of a cellphone belonging to Kelsey.
Friday, Jan. 4
Anyone with information is asked to contact the Woodland Park Police Department at 719-687-9262 or Kelsey@city-Woodlandpark.org.