In 1944, a Scottish medium named Helen Duncan became the last person to be prosecuted under the Witchcraft Act of 1735. Yes, WWII-era Britain actually wasted government resources prosecuting someone as a witch. Her crime? Claiming she saw an apparition of a dead sailor from the sunken HMS Barham during a seance.
A man killed himself in order to prove the after life exists. He arranged to have a spiritualist hear his voice from the other side. She never heard from him.