It's done by twisting the public's perception of the state of things so that they'll be biased when they're actually called upon to judge their peers. You DO know jury selectees can be rejected or accepted based upon their supposed biases right?! If the MSM creates those biases they can be either accepted or rejected for JURY DUTY based on those imposed biases. That's what the MSM seeks to do. THAT is the court of public opinion. It's a prelude to how people vote, both at the polls and in courts of law.
It's all about creating bias before it reaches due process. If you need further education in that I am happy to oblige and make an example of you. It's all good....