An old STP sticker, the memory of a cap-gun-toting hippie, a rogue marshal and a 45-year-old grudge all came together earlier this month in a bizarre event that shook the small mountain town of Nederland. Forty-five years after former Nederland Marshal Renner Forbes killed Guy “Deputy Dawg” Gaughnor, who he considered a nuisance, and then dumped his body near a gold mine shaft, the victim’s friend is accused of seeking vengeance by trying to blow up the Nederland police station, sources familiar with the investigation say. They say that on Oct.