saw a show on the tube about zombies, real ones. gotta be one of the worst things a human can do to another. showed a young lady in haiti who was given something (shellfish toxin, perhaps) and never recovered. looked normal, except eyes were dead. had no will of her own. would sit or stand forever in one spot if allowed to but would follow all orders. family would for example give her a bowl of dugh to mix, and she would. had to be led to a chair with the bowl, made to sit down. horrible.
likely puffer fish toxin. the slavery aspect is the whole point of the venture evidently. induce fake death, bury victim, dig up, and presto: malleable slave whom no one will miss.