In July of 2005 in Papua New Guinea, two men decapitate a woman on suspicion of killing their fathers with witchcraft. To rationalists, it's quite sad that people are so unwilling to accept death that they have to hide from it with magic and fairy tales. But when it starts resulting in more lives being taken, it's more than just pathetic; It's downright dangerous.
Meanwhile, the defense council is asking the judge for leniency because they believe in sorcery. While I think they're nuts for believing in it, if they do truly believe, then the two men still acted making an intentional choice for which they should be held accountable.