Disclaimer: I do not own Death Note or claim ownership
A black notebook falls from the sky. "Oh look a notebook" Light says noticing the notebook. "How to use it: The human whose name is written in this notebook shall die". "I know! I'll kill everyone in jail!" Light writes down 'Every single criminal in jail' in the notebook down but by accident he imagines the face of some named 'Every single criminal in jail' and that person dies. "oops" light says shrugging "But now I know it works!" he laughed evilly. "I want to kill everyone in the world who opposes me!" Light imagines the face of 'Everyone in the world who opposes me' and 'everyone in the world who opposes me' dies. Light laughs evilly again. "I am the ruler of the world!"