Oh yeah, there's a difference between morbid curiosity and whatever the hell this is. There are real reasons for wanting to research murders and other grisly things. There's a lot to learn. I've researched Charles Manson over and over so I'm in the same boat as you are. I don't know how to put my specific complaint into words. What I hate is that "serial killer obsessive" is a kind of cultural aesthetic one can adopt similar to enjoying sports or watching Star Trek. That part is ludicrous.