Though serial killers are obviously terrifying, learning about them is weirdly fascinating — and some documentaries do a great job telling their stories. Wikipedia Commons / Fair Use / en.wikipedia.org Maybe watching H.H. Holmes: America’s First Serial Killer made you never want to talk to charming men again. hhholmesthefilm.com Perhaps Aileen Wuornos: The True "Monster" Serial Killer sent shivers down your spine. youtube.com Or maybe you're intrigued by the grisly details of cannibalism and murder you learned from Albert Fish: In Sin He Found Salvation. Facets Video Serial killer documentaries can be informative, but spooky. So tell us, which documentary is your favorite? youtube.com Tell us in the comments below for a chance to be featured in an upcoming BuzzFeed Community post!