He was the fake medium from Florida whose scandalous cons almost got him shot. So why did M Lamar Keene then blow the whistle on psychic swindlers? A new podcast finds out

What does it take for someone to impersonate a dead teenager to the grieving mother of the deceased? For M Lamar Keene, a prominent Tampa-based medium in the 1960s and 70s, it was a cinch – all it required was a cocktail of cunning, charisma and sheer audacity. In front of the congregation of his spiritualist church, Keene would enter a trance state and appear to speak as the deceased 17-year-old, Jack, and ask Jack’s mother, Lona, to donate thousands of dollars to the church. One day, Lona asked Jack about the secret name he used for her, to prove it was really him, and Keene was stumped – until he attended a gathering at her house and feigned a headache. While pretending to rest in her bedroom, he searched her belongings and found the name scribbled in a family Bible: “Appleonia”. He pulled it off.

Keene confessed to being a conman in his 1976 book, The Psychic Mafia. Jack and Lona’s was just one of many audacious cases he revealed in the exposé, which shook the world of spiritualism so much that it led to an attempt on his life. Someone took a shot at him on his lawn but missed, leaving a bullet in the side of his house. In the book, Keene described how mediums shared client information so that they could conduct “hot readings” based on solid facts. He recounted how they would steal jewellery from clients for a few months, only to pretend a dead family member’s spirit had made it reappear (which usually resulted in generous tips). Ultimately, he confirmed that mediums formed a vast network to fraudulently monetise people’s grief. So why did Keene – the so-called Prince of the Spiritualists – choose to blow the whistle on everyone?