I remember watching Jesse Ventura's conspiracy show and he spent a long time showing the technology existed to alter one's voice so it sounded just like someone else, so someone could have called and made it seem like they really were the loved one the person knew, I'm thinking occams razor says they just lied. I guess it's hard for some to believe people would be so craven as to lie about such a thing. They don't allow a real investigation tho so they're hiding something.