This is a tragedy and in no way should what I write be interpreted as justifying this crime. I don't know what the motivation was, if it was related to talk shows or something else. However, one pet peeve I have always had about law enforcement activities is when they do "sting" operations or use undercover type operations to investigate illegal activity. In certain parts of this country Meth labs are very common, rural Kentucky is one of those areas. This gives an idea and I bet it under-reports the problem:
http://www.usdoj.gov/dea/concern/map_lab_seizures.html
My theory is that rather than talk shows, what we may have is paranoid Meth lab operators and an innocent "federal government" census worker. The two don't mix in an environment where a knock on the door, a government official asking questions and drug related illegal activity is taking place. When law enforcement pretends to be something other than what they are through "stings", it puts innocent people at risk. This, to me, is a "sending a message" type crime to anyone who comes into that area uninvited.
This is all I have to say. Don't ask me a question if you don't want me to respond further.