Chief Keef drives fast. We discovered a couple days ago that the young rapper was driving at twice the speed limit (110 mph in a 55 mph zone) in Northfield, Illinois, with three passengers. Today we get proof of that, as seen through a police vehicle's windshield in the rainy darkness. Then you see him emerge from the BMW a stoic Sosa to be carried away by his pursuers. Ah, the heights to which technology has taken us.