Police released new details Friday about what they found in the home where a Fort Worth woman and her infant son were found dead, as well as what led them to suspect her husband was the killer.

Craig Alan Vandewege (Garfield County Sheriff's Office)

In the arrest-warrant affidavit for Craig Alan Vandewege, 35, police say he called 911 just before 9:30 p.m. Dec. 15 to report that he had found his wife, Shanna Riddle Vandewege, and 3-month-old son, Diederik, dead.

Officers arrived at the home in the 8500 block of Cactus Flower Drive about 10 minutes later and found the body of Shanna Vandewege, 36, in bed with a deep horizontal cut to her neck. The baby was in a bassinet next to the bed and also had suffered a deep cut to his neck.

Both were pronounced dead at the scene.

Detectives said it did not look like Shanna Vandewege had struggled and that she had been asleep or unconscious when her neck was cut.

Two dogs at the home were secured in a room, the affidavit says.

The home looked like it had been staged to resemble a burglary, detectives said in the affidavit.

While searching the home, detectives noted that although cabinets and drawers in several rooms had been opened, everything seemed to be in place and valuables remained in the home. Two safes were open and on the bedroom floor, with their contents strewn about.

The back door, which was unlocked, had pry marks on its frame that appeared to have been made both from inside and outside the home, the affidavit says. It also appeared that the door had been open when those marks were made.

Crime-scene technicians would later find evidence of blood in the bedroom and kitchen sinks, "consistent with someone cleaning the scene."

Interview at the police station

In an interview at the Fort Worth Police Department, Craig Vandewege told detectives he had kissed his wife goodbye when he left for work around 10:30 a.m. that day. He stopped to get coffee for his co-workers and didn't arrive at his job at Costco until 11:45, he said.

A co-worker later told police that Vandewege had been 45 minutes late to work.

According to the affidavit, Vandewege said he texted his wife several times during his shift but never got a reply. He said he bought diamond earrings for her, as well as a ladder so he could hang wedding pictures along the stairwell of their home.

He said he did not know anyone who would want to hurt his wife and child.

Shanna and Craig Vandewege with their baby, Diederik. (via Facebook)

When police asked to examine his phone to help establish when his wife was last alive, he declined, saying it was intrusive. An inspection of Shanna Vandwege's cellphone found "no outgoing activity … that would suggest that she was alive after 10:30 a.m.," the affidavit says.

Detectives noted that Craig Vandewege slept for much of the time he was at the police station.

Four days after the slayings, Craig Vandewege halted contact with police after telling them he had retained a lawyer.

Violent voices, violent dream

On Wednesday, detectives interviewed one of Craig Vandewege's co-workers at Costco about his recent behavior and his relationship with his wife.

The co-worker said Craig Vandewege constantly complained about Shanna Vandewege, saying she moved his things around and "wore her hair poorly." He said drinking was the only way he could tolerate her, according to the affidavit.

The co-worker said Craig Vandewege claimed to be taking a medication that made him hear "voices that tell him to kill people," and just days before the slayings had mentioned a dream in which he "sliced the heads of his wife and father like bologna."

Additionally, the co-worker told detectives, he had once said while Shanna Vandewege was pregnant that he wished he could kill her by pushing her down the stairs.

Arrest in Colorado

Early Thursday morning, Fort Worth police were notified that Vandewege had been detained in Glenwood Springs, Colo., after a report of a man acting suspiciously.

Vandewege, who was charged with speeding and failure to provide proof of insurance, told the officers that he was in Colorado to bury his wife and child. He claimed his lawyer told him to leave Texas or he wouldn't be able to bury his family, and also advised him to get a burner phone.

"It's been a long week; my wife and kid were murdered in Texas," he reportedly said.

He also told officers the government was framing him for the slayings and that he was "headed to Las Vegas to see Donald Trump" to work things out, according to the Fort Worth affidavit.

Police searched Vandewege's car and found boxes of ammunition, empty gas cans, camouflage clothing, bottles of medication, an AR-15-style rifle and a .22-caliber revolver. He had holstered pistols on his waist and ankle, and also had his wedding ring and a pair of condoms in his pockets, police said.

Glenwood Springs police called Fort Worth authorities to confirm his story. As he was posting bond for the traffic violations, they were alerted that Fort Worth police had issued a capital-murder warrant for Vandewege.

"He didn't get out the door before he was back in custody," Glenwood Springs police Chief Terry Wilson said.

Craig Vandewege was being held at the Garfield County, Colo., jail Friday night, with bail set at $1 million. His lawyer, Leslie Barrows, told KXAS-TV (NBC5) that he would not fight extradition to Texas.

A funeral for Shanna and Diederik Vandewege will be next week in Walsh, Colo.