What about places that where important to JB and SM's relationship? They were together many years (7?) before marriage. They dated in the area, perhaps they hiked together or picnicked in a local park??? I can't get past the feeling that JB harming Sky was not only an extension of her illness, but also a way to "get back at" Solomon. It is possible that she chose a place that had some kind of importance to their relationship. I don't have access to the flickr account anymore, but does anyone remember any that were earlier photos taken of JB with SM, either outside or just not in the family home?
I also keep thinking about that photo of the marina... Ugh. We need more info...