from NY Post: "According to the police report, Richardson was clocked doing 143 miles per hour in what police believe was a street race. When the police tried to pull over Richardson’s 2014 Bentley Silver Spur, he accelerated and tried to avoid the police. He pulled off I-64, turned off all of the vehicle’s lights and sped through a traffic light, according to the police. Richardson eventually turned into a driveway and the officers told him, at gunpoint, to exit the vehicle because they saw him reach for something between his feet. Richardson complied, but police found a loaded semi-automatic handgun under the mat on the driver’s side. The officers also said they smelled marijuana in the vehicle. There were two adult males and a 12-year-old in the car."
Prejudice generally stems from the double edge sword of human's advanced pattern recognition ability. I could explain the concept further and go into greater detail on factors in this particular case but I suspect you're looking more to make a point than wanting a real discussion.