Do Serial Killers Actually Have to Commit the Crime?

Perhaps it's because this year marks the fortieth anniversary of the grisly murders but, as I was flipping through the channels last night, I noticed that both MSNBC and Fox News were airing specials about Charlie Manson. One program focused on the mind of Manson by studying an interview he gave in 1987. The other show was more of a general retelling of the events. Even several decades later, just the image of Charles Manson is enough to fascinate and terrify most people. As one of the commen...