I theorize that orange just got done doing a deal, shot that guy so he could resell the crack on them and blue was driving their car and saw him got shot so he crashed into the pole. gray was running his shop when he saw the murder happen in the window. I got it from the fact that orange was a crack slave and the guy that died looked shady, and I know blue had the car since he wasn't the culprit and orange was, so it would've need to be blue in the car, grey was because he could see it through the window in the store and it was probably closed, and his job was being a store clerk and had no car.