Here's what I remember from the first reports:
Her father had been with a friend that night.
Returned home in the morning.
Heard Jessica's alarm going and knew she would be up soon.
Took his shower.
Afterwards, alarm was still going so then he checked and found her missing.
Later reported by media that the friend he had been with was a girlfriend. No big deal that this was withheld initially since it is so personal and the police did know.
Father has taken voice analysis test plus lie detector administered by FBI.
Grandfather has taken voice analysis and will soon (if not already) take lie detector.
I really fear for this girl.
If Jessica was yanked out of her bed in the middle of the night, wouldn't she yell and scream? Also, the dog didn't bark. The grandparents were close by. It had to be someone she knew, who let her take her doll.