As a tool to control public opinion, the media will be used if it is used by others. There are also a lot of mob consuming media responsible for producing the public opinion expected by users. The subtext of the trial is power. The power does not represent eternal justice, let alone guarantee the justice of the result. Media trial means that the power side uses public opinion to achieve its own goal, and the mob is the object of utilization, and they also enjoy the entertainment brought by the process.