[ekaryotic]

actually there was a chinese serial killer that used a technique like this. He had a septic tank and threw his victims in along with the dead bodies of his previous victims and would only let them out if they brought more victims from a train station. article is partially paywalled but is the case in question. https://archive.is/QxBDr https://medium.com/crimes-by-mr-o/this-teacher-was-thrown-in...