Have you ever seen a demon taking its effect in a human?

If you make realise a human, that he is going to get some jackpot or gold through a process, you will see a flick in his nature. His greed will give power to the demon and the demon will keep growing stronger and you can see in his nature. That human will be consumed by greed and the demon has taken control over his judgement. Greed feeling will grow stronger Now the human is in the grasp of demon and human can do anything like kill or anything else so that he can attain the gold or jackpot.