I walked the shoreline near her house a few weeks after her disappearance and came away feeling like she accidentally went in the water. The ocean there was not calm. I also found it odd that LE conducted a thorough search of the water within a few hours of her disappearance IIRC - it was one of the quickest responses I've seen.
IIRC, the reason the search happened so quickly was that the Coast Guard was in the area for training or something to that effect so they were already closeby so it was easy for them to mobilize. She went missing around 4pm and her guests arrived approx 6 pm - and shortly after called LE. .
I also was in the area a few weeks after she went missing. I don't spend much time up there in the winter, but I do spend time there in the summer. I was struck by lack of residents out and about on a normal weekday in the early afternoon, on a fairly nice February day. I assumed a lot of houses were second homes/ or if primary residences, that their occupants were off to warmer climes for the winter.
What I did see were a lot of workmen/ and workmen type trucks and vans at the houses - lots exterior and interior construction /maintenance happening. I imagine the interior construction was happening on Sundays too.
From memory, Abbie's house was set back from the road with a circular driveway with no visible house across the street. On one side of the house was a parish/church that looked closed up on my visit, and on the other side was a neighbors house that was situated to the front of the property with what seemed like no real sight lines to her house.
If someone stopped at her house or stopped her on her walk asking for directions - she was an easy victim. A quick crime of opportunity. Since she was said to be an avid walker in the area, she may even have recognized an individual and gotten close to their van to chat. I could go on and on. We heard the standard refrain that there was no danger to the public etc.
Abbie was a 60 yr old woman in a very safe and wealthy area - so a low risk victim in a low risk area.
I know their were k9 units brought in for the search. Does anyone remember where the trail went out of Abbie's house? Were they able to pick up Abbie's scent? I think that is the piece I am missing. If she did walk herself out to the ocean - did the k9's pick that up?