FREDERICK, Colo. (AP) - Shanann Watts' Facebook page painted a portrait of a happy married life - of a woman dedicated to her husband and their two young children. She called her husband "my ROCK!" and said he was "the best dad us girls could ask for."

That idyllic image was shattered Wednesday when her husband, 33-year-old Christopher Watts, was arrested on suspicion of killing his family in Colorado.

Police said the mother, who was pregnant, was found dead on property owned by Anadarko Petroleum, one of the state's largest oil and gas drillers, where Christopher Watts worked. Investigators found what they believe are the bodies of 4-year-old Bella and 3-year-old Celeste nearby on Thursday afternoon.

They have not released any information about a motive or how the three were killed.

"As horrible as this outcome is, our role now is to do everything we can to determine exactly what occurred," John Camper, director of the Colorado Bureau of Investigation, said at a news conference in Frederick, a small town on the grassy plains north of Denver, where fast-growing subdivisions intermingle with drilling rigs and oil wells.

The deaths also left family and friends searching for answers.

Shanann Watts, 34, was one of the first customers to visit Ashley Bell's tanning salon in nearby Dacona two years ago. The two women quickly became friends, and before long they were texting or calling each other almost daily. Their daughters also played together during salon visits.

Bell said she never detected that anything was amiss with the Watts family.

"I just don't understand it," said Bell, who described Christopher Watts as a loving father.

Shanann Watts was from North Carolina, and her parents' next-door neighbor, Joe Beach, said he saw her recently when she visited the neighborhood of modest homes in Aberdeen.

"We were talking about general things, about how her two girls were doing and how life was out in Colorado. She didn't give me an indication that there was anything wrong. She seemed pretty happy."

But a June 2015 bankruptcy filing captures a picture of a family caught between a promising future and financial strain.

Christopher Watts had gotten a job six months earlier as an operator for Anadarko, and paystubs indicate his annual salary was about $61,500. Shanann Watts was working in a call center at a children's hospital at the time, earning about $18 an hour - more for evenings, weekends or extra shifts she sometimes worked.

The couple had a combined income of $90,000 in 2014. But they also had tens of thousands of dollars in credit card debt, along with some student loans and medical bills - for a total of $70,000 in unsecured claims on top of a sizable mortgage.

They said in the filing that their nearly $3,000 mortgage and $600 in monthly car payments formed the bulk of their $4,900 in monthly expenses.

Christopher Watts, who is being held without bail, is expected to be formally charged by Monday. He was arrested on suspicion of three counts of murder and three counts of tampering with evidence.

The case also has focused attention on Colorado's lack of a law allowing homicide charges in the violent deaths of fetuses, which is the case in 12 states. Proposals to allow homicide charges in the violent deaths of fetuses in Colorado have been stymied by debate about how to avoid infringing on abortion rights.

Republican lawmakers last tried to change the law after a 2015 case in Boulder County. A woman named Dynel Lane was charged with attempted murder and unlawful termination of a pregnancy for cutting open a pregnant woman's belly and removing her unborn baby girl.

Prosecutors said that they could not charge Lane with murder because a coroner found no evidence the infant lived outside the womb.

State law does allow a homicide charge if a fetus was alive outside the mother's body and then killed. State lawmakers in 2013 also allowed prosecutors to add extra felony charges against anyone who commits a crime that causes the death of a fetus.

The law can add up to 32 years to a prison sentence. The top punishment for homicide in Colorado is the death penalty or life in prison.

Prosecutors have not discussed any additional charges that Watts may face.

After his wife and daughters were reported missing and before he was arrested, Watts stood on his porch and lamented to reporters how much he missed them, saying he longed for the simple things like telling his girls to eat their dinner and gazing at them as they curled up to watch cartoons.

He did not respond to reporters' questions when he was escorted into the courtroom Thursday.

His attorney, James Merson with the Colorado State Public Defender's Office, left the hearing without commenting to reporters and did not respond to a voicemail left at his office Thursday by The Associated Press.

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