About the discussion on hair dye. Different people have different hair when it comes to how much color it absorbs. I would definitely have returned to my regular hair color after a year even if it was colored black. I wash out all colors, even the ones that are supposed to be permanent, Andrea could have had similar hair to me. On top of that, her hair is not extremely long and if she was the type of person whose hair grows fast she could have had all or most of the dyed hair grown out. It is not that hard to cut your hair if you have no demands of an elaborate hair style, a pair of scissors and it is done. I cut my own hair from time to time myself and you do not have to look crazy despite of doing so a coroner might not have seen that the hair was cut by an amateur, I don't think people would know that about me either for the most part.