Batavia, N.Y. -- A Genesee County Grand Jury has upgraded charges against a man accused of punching another man at a Kid Rock concert at Darien Lake last month.

Craig Lawson of Canada was orginally charged with misdemeanor,  and returned to Canada.

 This week Lawson was charged with 2nd degree assault - a felony. Lawson is due back in court next month.

The victim, Jason McNeil ,remains  in the hospital with very serious injuries.