John forces his college buddy to go out drinking. while his friend is drunk he gets his buddy to defile college property. john's buddy is what party of the crime?

In this particular scenario, it is most likely that John's buddy would be charged as being an accessory after the fact. It is likely that John would be charged as the principal in this case as he sounds as if he is the ringleader, his buddy was following along in a drunken stupor which would simply make him an accomplice.