BJ Penn, the former UFC lightweight and welterweight champion, is at the centre of a disturbing legal and psychological controversy. In a series of social media posts and court appearances throughout 2025, the 46-year-old Hawaiian fighter claimed that his mother was murdered and replaced by an imposter. These allegations come as Penn faces assault charges and prepares to represent himself at trial in July, raising broader concerns about his mental health and a possible diagnosis of Capgras syndrome.
