Mr Upshaw

In the novel The Mirror Crack'd from Side to Side, Mr Upshaw is a resident of St. Mary Mead. He had travelled to America once or twice on business for his firm, so he knows a lot of gossip from there. He tells his friends and neighbours that Arthur Badcock was once married to Marina Gregg, before she began her film career. He says that they were married for a year or two before getting divorced. When this information reaches the police, they ask Arthur to go to the police station and "assist them with their inquiries". Cherry Baker hears about this, and tells Miss Marple.