Great question, Pelican!
My theory has been that Mollie was taken while walking towards her Mom's very early in the morning. 6:15 to 6:30ish a.m. Maybe even earlier.
The abduction occurred before her brother contacted her cell to find out whether she needed the car they shared.
Mollie let the dogs out, fed them and then put the dogs in the basement
It was too early to text anyone - they would still all be asleep
I think she planned to have breakfast with her Mom then take the car to work
They didn't lock doors so no need to take keys
She didn't take her wallet because she tucked some cash inside a pocket or with her cell phone. She took her driver's license but no other I.D. or credit cards
*Mollie had extra sets of contact lenses -usually people do because the chance of losing or dropping one is pretty high
She was wearing her Fitbit as usual
She may have been listening to music with her earphones (her brother said she usually did this while running)
She left before the rain started
Someone had been watching her movements for quite sometime, waiting
He knew she was home alone because he was always watching
He knew she would soon be heading to the Dominican R. for the wedding (common knowledge in a small town)
This was his perfect opportunity he had been waiting for
The rain started
He had been waiting in his car and he pulled up and offered her a lift
She knew him, perhaps not well, but she knew him and had no reason not to trust him
There was no evidence of a scuffle on the road because she accepted the ride - his offer didn't seem out of the ordinary. Mollie grew up in Brooklyn and most people were friendly and helpful
He took a side road on the way to her Mom's house
The evidence is somewhere but the investigators have yet to find it
He is closely watching the investigation and possibly took part in a search for Mollie
He has planned this in his mind and fantasized for this for a very long time
He had a love/hate obsession for Mollie. Possibly for years
His behavior in this appears he is an "organized" perpetrator as per F.B.I. classifications.
There was nothing pointing to "random" in this abduction
It had been planned for sometime. He only needed the opportunity.
He took the opportunity
*the possibility of Mollie having an extra set of contact lenses has not been confirmed and is a belief I have that most contact lense users have multiple pairs.