Investigators have determined that Bill Sparkman, the census worker who was found dead with an anti-federal government message scrawled on his body, committed suicide. There’s some political news here: Coming as it did the day of the taxpayer march on Washington, days after Rep. Michele Bachmann became the most prominent Republican to urge non-compliance with the census, it’s good news for conservatives that Sparkman’s death was not a politically-motivated homicide.