Top 15 American Horror Story Characters Based on Real People sources
https://www.popsugar.com/entertainment/photo-gallery/36364636/image/36364674/Season-1-Nurse-Murders-Richard-Speck-Case
https://the-line-up.com/american-horror-story-characters/
http://mentalfloss.com/article/86942/7-real-life-horror-stories-behind-american-horror-story
http://www.suggest.com/tv/1557591/12-american-horror-story-characters-that-are-actually-based-on-real-life-horror-stories/
http://didyouknowfacts.com/9-american-horror-story-characters-based-real-life-killers/
https://en.wikipedia.org/wiki/Black_Dahlia
https://en.wikipedia.org/wiki/Ed_Gein
https://en.wikipedia.org/wiki/Axeman_of_New_Orleans
https://en.wikipedia.org/wiki/Lizzie_Borden
https://en.wikipedia.org/wiki/Elizabeth_B%C3%A1thory
https://en.wikipedia.org/wiki/Richard_Speck
https://en.wikipedia.org/wiki/Gwendolyn_Graham_and_Cathy_Wood
https://en.wikipedia.org/wiki/Jeffrey_Dahmer
https://en.wikipedia.org/wiki/John_Wayne_Gacy
https://en.wikipedia.org/wiki/Delphine_LaLaurie
https://en.wikipedia.org/wiki/Aileen_Wuornos
https://en.wikipedia.org/wiki/Daisy_and_Violet_Hilton
https://en.wikipedia.org/wiki/H._H._Holmes
https://en.wikipedia.org/wiki/Eric_Harris_and_Dylan_Klebold