I just wanted to toss this out because I have heard people saying that it doesn't make sense that she didn't turn her phone off. Maybe she did? Newer advances in telephones make it possiable to ping or track your telephone even when it is turned off. It is not a real commonly known thing, or easy to forget about. Perhaps, you may even think that your phone company or telephone model doesn't have that service. Earlier someone else listed a link as well, i'll add it too. http://www.privacyrights.org/fs/fs2b-cellprivacy.htm snip: http://www.talkleft.com/story/2008/7/2/195035/3943 Even when 'off' it's periodically emitting a short burst to tell the system which tower(s) to use for your incoming calls. it's this burst which is used to locate you. Pull the battery to secure your location. Plus, GPS might already have been an option if her husbands truck had onstar in his car. I am not sure if they can track it even if it isn't paid for via activation.