New to this thread but not to the story. A few thoughts: Someone here mentioned that Jennifer was very careful. However, I lived a few miles from her residence/disappearance site (moved there right after she went missing) and have a couple of observations. A local person told me that she would NEVER "let" her daugher live in that area, but especially that building. The MM area backs up against a wooded area known to be habituated by itinerants/drug dealers. In addition, the building in which she lived was virtually unoccupied while she lived there, and I believe even she expressed some discomfort at living there. Most of the people around were workers (and in FL, probably many, many itinerant/illegal).
Also, re: the topic of trafficking that comes up over and over here. Looking at JK, it would seem that she would be a highly unlikey target -professional woman, close to family and friends, gainfully employed at an office where she was required to be present at everyday. Her looks just say money, friends, family..... therefore, I'd think she'd be the last