Let's start with the tunnel incident first. Here is what we know:
-Ja'den McBurrows a CB coming off an ACL injury was in the tunnel and there is video of a number of Michigan State players punching him.
-There is also a second video of Michigan starting CB Germon Green and an MSU player swinging his helmet at him.
There is a photo of McBurrows and Green walking in the tunnel together after the Penn State game as well. I assume they're friends.
MSU President sent out a message that this is unacceptable and they are cooperating fully with the Big Ten and Police during the investigation.