Ask him how many black people are shot by the police in the USA in a year. Ask him how many were in the process of committing crimes and/or fighting the police when they were shot. Ask him how many white people are shot by the police each year and how many stories the media has done on any of them. Why don't we know any of their names? Ask him how many black people are shot each year in Chicago by other black people and how many stories the national media has done on any of them. If he looks these stats up, he'll start to have an understanding of how manipulated he's been.