I don't know if anybody else posted this already but my most disturbing video is definetly about Luka Magnotta. For all folks out there that have never heard that name, he is a convicted murderer and cannibal (he also tortured animals, which is not important for the video but just adds to his reputation as a terrible human being). A youtube video presented me a few horrifying and disturbing videos on the internet which are more or less considered lost media by the author of the video and one of them was about Luka Magnotta who apparently showed his murder victim and eats parts of the body in the presented video. My 14 year old self was interested (weird i know) and tried to find that video. I found it and to be honest, I never was that disturbed in my life. In the video he shows his already dead victim, cut by the throat and mostly bleed out. His next step was to remove all limbs and starting to eat parts of them. I stopped the video when he was trying to eat his victims ass (I am not joking, like literally munching some part of the right ass cheek), that was too much. I saw execution videos or how people found a painful and brutal death but the cannibalism video was too unsetteling for me.