The Serpent 

Charles Sobhraj, a killer of mixed Vietnamese and Indian descent, was convicted for committing heinous murders across several countries including India, Nepal, Thailand, Turkey, and Iran. He had a delusional belief that he was a superior being, likening himself to a superman, and considered his actions as a means of purifying the world. Travelers who ventured along what he referred to as the 'Hippie Trail' in Asia witnessed Sobhraj using pills and powders to make his victims ill before ultimately stabbing or burning their bodies. In a similar incident, he attempted to poison 60 French tourists staying at an Indian hotel, but they were fortunate enough to only suffer from diarrhea, leading to his arrest. Sobhraj, also known as 'The Serpent', made several successful attempts to escape from prison, but he is currently securely held behind bars in Nepal. However, it is likely that he will soon make another attempt to flee.