In the pantheon of serial killers, Belle Gunness stands alone. She was the rarest of female psychopaths, a woman who engaged in wholesale slaughter, partly out of greed but mostly for the sheer joy of it. Between 1902 and 1908, she lured a succession of unsuspecting victims to her Indiana “murder farm.” Some were hired hands. Others were well-to-do bachelors. All of them vanished without a trace. When their bodies were dug up, they hadn’t merely been poisoned, like victims of other female killers. They’d been butchered.