A scene from “Unfinished Business”

Jessica Fletcher: [after exposing the murderer] Vincent Nader's plans for a hotel would have put a stop to your digging. John Sullivan was getting too close to the secret. But Nan? Was it worth that much to you to wipe out the life of such a beautiful, clever young woman?

Supt. Arthur Joyce: Indeed it was. She was destroying a dream. Here was a chance for me to get out of this grind, to leave Ballyknock for good, for us both to get rich beyond our wildest dreams. Nan, she had this ridiculous notion that the treasure should go to Ireland. I couldn't have that!