I read earlier this week...that the red truck guy that they said hit him, was really trying to get over when he saw the lights of the car that Corzine was in blinking behind him.
They think that when he went to get over, Corzine’s car either clipped IT...or they lost control when going around the red car.
IOW...the red truck guy didn’t hit him.
Here is an animation of what happened.
http://69.2.104.48/editorial/Online/special_projects/graphics/SPEED.html