Countless people have been killed because of witchcraft in history, and the most severe one is the later years of Emperor Wu of Han Dynasty, who killed his prince and queen Wei Zifu's family because of witchcraft. And those who were killed because of witchcraft actually didn't use it to harm people, just because they were framed. Ancient people had an inexplicable fear of the unknown. Some people may be hypnotized, or bitten by poisonous insects to paralyze their nerves. When they didn't know the principle, they thought someone else had set them up by witchcraft.
It is generally believed that witchcraft originated in scenic spots. In ancient times, the scenic spot was an uncivilized area, where people interacted with insects and snakes, and we all know that the toxins of some insects and snakes can really paralyze the nerves, so people are more afraid of those who keep insects and snakes. In the Han dynasty, if you find insects and snakes in your house, you will definitely catch them first, regardless of the willy-nilly, all of them will be treated as witchcraft damage.
Ancient emperors cherish their own lives, so they are particularly concerned about this method of silently poisoning their own lives, so it should be completely banned. But in fact, the existence of witchcraft technology is still a mystery.