To me, someone wouldn't have had to partially strangle, tie someone up with rope, or stab, or shoot her All one would need to do is hold a gun on her, and she'd do whatever someone told her to do. Especially if there was more than one person in the car, other than her. I agree there would be heavy police presence in Lynn that night, however, I doubt they were stopping cars. They may have been directing traffic, but nobody would be stopping. I'm not so sure she would have yelled at a cop while driving by with a gun pointed in her side. That is of course if the car drove through Lynn at all. If she was killed in Hamilton that night, (which I doubt due to my theory as to why someone would place her in a plastic bag and then bury her in the same spot) they could have driven up Rt 1, or 95, instead of driving through Lynn. I believe she was killed someplace else. Forced out of the car by gun point at a different location and bludgeoned to illuminate the sound from a gun. That could have been at someones house in the basement. She could have stayed there for some time, (even though her suitcase was dropped off at the Bus Station the next day and her purse tossed), placed in a bag, and transported at a later date to Hamilton after the grave was dug, but before the snow storm. I would think if her arms and legs were tied, there would have been traces of rope at the crime scene. If she was shot or stabbed, I would think there would have been at least a trace of that on a bone. This is total speculation on my part, may have little bearing on solving this case, but still good discussion imo. As far as this being well planned in advance... If this is true, then whoever did this was more than just a casual acquaintance. He would have had to be close enough to know exactly when she was returning to Logan. Even if she casually mentioned in a conversation with a friend of a friend, that she was leaving town for the Holiday, I doubt she would give such details as to the exact timing of her flight back to Boston. I think it would be more vague like "I'll be back Saturday night". That to me is not enough information to have a cab/car sitting in the right spot at the exact time they would need to be. And what if she knew something about the mastermind of this crime that she shouldn't have? Would the police have questioned everyone she knew, and her habits and hang outs to try and determine this? Or would they skip that part, knowing the real story because they themselves were involved? Edit: Knowing if her ticket was bought round trip and her timing for her return trip not altered, as someone else mentioned previously, would be a big help.