If there’s one sure fire way of identifying a psychopath, you can’t go far wrong with ‘he’s murdered so many women he’s got his own murderer nom-de-plume’, but nobody seems to have told people in the 1600s that. This led to a situation where Matthew, a man who called himself ‘The Witch-finder General’, was allowed to go around killing women like they were characters in Game of Thrones.

