I kind of agree. For one, most seem to be all in on a undercover perp. Some sinister movie of the week type criminal. In real life most murders are done by family, neighbors, friends co-workers and people known to the victim. Stranger danger is far down the list.
I always start from there. So, while he might get caught or have the person escape early on, the longer it goes the more likely it would be she left willingly.
This only applies to someone who is over the age of consent. She's 20 years old and may not have wanted to live the rest of her life in small town Iowa the way it looked like it was headed with the the bf expected to propose in the next month.
Once she went off to college all bets were off.
She spent a long time talking to her Dad. Maybe a longer talk than usual of 3 hours.
He said he thought she left with someone she knew and he probably knows what he's talking about. If there's no evidence to the contrary.