My question involves criminal law for the state of: MN
I have a simple situation and am trying to stay calm right now to look for a simple answer.
I just arrived home after attending a house party in my hometown where I was punched in the face more than one time, with brass knuckles.
I don't think I should go into too much detail for legal reasons but I was using a drug that is currently illegal in the U.S. and this person who was drunken and passed out at the party woke up and saw that I was consuming this substance.
For whatever reason he disapproves of said substance usage and blindsides me with brass knuckles in the face, hitting me twice very hard, still bleeding an I still have a semi-open wound after 2-3 hours.
One of my friends told me not to do anything at the time because I was using said substance and I could get in trouble for that. Not to mention the kid I was using said substance with said "i didn't see anything" when I asked him if he just saw what happened. He is obviously trying to protect the kid with the brass knuckles.
I dont know what to do... please advise.

