TOP serial killers and psycho from K Drama: 강필성/Kang Pil-sung/아가씨 (The Village: Achiara’s Secret)

Drama: 마을 - 아치아라의 비밀/The Village: Achiara’s Secret (2015) Music: XIA – 꽃 (Flower) (Inst.) I would like to know better people who watch videos like this. So question for this time - who is your favorite serial killer and why? I have already seen some nice video about serial killer with this song - So, thank you for this.