A 21-year-old has been hit with two criminal charges ... after authorities claim he supplied Kavan Markwood -- a minor -- with alcohol just prior to the Pirates fan's tragic fall at PNC Park last month.
Court records show Ethan Kirkwood is facing two misdemeanor counts of furnishing liquor to Markwood a short time before the 20-year-old sustained significant injuries in a 21-foot tumble from his seat at the Pittsburgh vs. Chicago game on April 30.
A criminal complaint, obtained by TMZ Sports, states Kirkwood was seen on security video buying two tall cans of beer just before the start of the game.