That's true. Some people view abduction of women in broad daylight as a "hook-up gone wrong", and this is what police said:
"Although we have not ruled out any scenario that could explain Mollie’s disappearance, we must consider the possibility that
foul play is involved. Individuals who commit
violent crimes often exhibit behavior that is recognized by those with whom he lives, works, attends school, or is in an otherwise close relationship with. Often, someone in the community will unknowingly be associated with the offender, and may be in a position to observe behavioral changes in that person. They will recognize the change and may even question them about it, but will not relate the change to that person’s involvement in a crime. Since Wednesday, July 18, 2018, you may have noticed one or more of the following changes:
- Change in normal routine, which might include missing school, work, or routine engagements without a plausible explanation;
- A vehicle unexpectedly taken to a repair shop or sold/disposed of;
- Unexpected or intensive cleaning of a vehicle, possibly at an unusual time of day;
- Unexplained lack of contact or inability to get in touch with someone you know the evening of July 18th into the morning of July 19th;
- Altering of physical appearance (growth or removal of facial hair, change in cut or color of hair);
- Displays of anxiety, nervousness, stress or irritability;
- Unexplained injuries;
- Changes in consumption of alcohol, drugs or cigarettes;
- Changes in sleep patterns;
- Interest in the status of the investigation, including close attention to media coverage or an unwillingness to discuss the investigation."
Iowa Department of Public Safety