Police reportedly said he was shot during a "botched robbery attempt."
Todd Walker, 20, and a female friend were walking home after a St. Patrick's Day party in Boulder when a man wearing a black bandanna over his face confronted them, according to ABC affiliate KMGH.
According to the Daily Camera, the two got into a physical confrontation with the man and the woman was able to pull the bandanna off his face. Police said that is when the man fired a shot into the air and then fired at Walker.
KMGH reported that he was taken to Boulder Community Hospital, where he was pronounced dead.