Sounds like a scammer!
An actual person was on the line today (6/6/12)though they did not identify themselves. I mistook the number for another number of someone I actually know in Emmett, ID that was my fault. They were looking for a person that has been deceased for over a year now. When I asked for clarification of whom they were calling for, I was told they had the wrong number by the lady on the other end. Not rude or unpleasant, but weird just the same. Hopefully they will not call back.