Well, supposedly he's retained an attorney. Not sure if he was involved, but it seems like it.
That's a very busy roadway and I'm sure there is camera footage, along with whatever witness cameras there might be (I saw a dashcam view - scary stuff). Street racing is a real problem... it's one thing to block city streets at night and race, or burn rubber... that's bad enough. But to drive at crazy speeds on a well-traveled roadway, during the day, no less - and put many innocent drivers and their passengers in jeopardy, and THEN leave the scene. Really brazen, and incredibly stupid, too.