Tom Fallis

He seemed responsible and ready for a family.

Just months into their relationship, Ashley became pregnant.

They had a son, Blake.

Two weeks after he was born, the couple married.

Soon, Tom also adopted the girls after their birth father gave up his parental rights.

Ashley's family felt it was all moving too fast.

Ashley and Tom had only known each other a short time.

And Jenna and Joel say they began to notice disturbing aspects of Tom's personality.

Tom and Ashley settled in the small town of Evans, about an hour north of Denver.

Ashley worked as a respiratory therapist, and Tom took a job as a corrections officer with the Weld County Sheriff's Office, working at the local prison.

Do you think you were a threat to Tom?

I was the one person that he could not isolate Ashley against.

Ashley was caught in the middle and the pressure on her only increased when Blake, still a toddler, was diagnosed with a chronic brain condition that required Ashley's constant attention.

It all took a stressful toll on Ashley and their marriage.

At any time during that, did you feel your daughter was depressed?

I would say that they were definitely going through some hard times.

This dress was so great that they even considered divorce.

But when talking to police after Ashley's death, Tom insisted that things were on the mend as the holidays approached.

They were planning to host a New Year's Eve party, and Ashley even thought she had recently become pregnant.

When we found out, when she had the positive test, it was like,