According to the denizens of /r/conspiracy and your wacky aunt on Facebook, there are terrifying mysteries unfolding all around us, all the time. These people clearly don't use Google.
It turns out that making art and tricking people into buying stuff are two very different skill sets, and artistic visionaries don't make very good marketing drones.
A lot of time and effort goes into crafting the laws of our society, but every once in a while our devoted lawmakers will overlook a tiny little detail or two.
We love our serial killers in one of two flavors -- dead, or in prison. But not the third flavor: the ones who do their thing for years, or even decades, without ever getting caught.