The Day The World Turned Strange

What would happen if one day a man said, “ If you kill 50 people and prove that you did it without getting caught by the authorities and can prove the dead and I’ll make you my heir” what would happen would everyone kill, what would the casualties amount to, I want to know like really bad so I’m gonna make a book on it. Co-writers include Ghetsis, Rush, Crissy and Crawfricc Thicc