Heat fan stabbed a Celtics fan after game 6

From IamaGM.com:

Boston Police are investigating an alleged stabbing that occurred immediately outside of TD Garden following Game 6. The report goes into detail how a group of Miami Heat fans got into a violent altercation with another group of Celtics fans.

According to WDHD in Boston:

Boston Police are searching for a Miami Heat fan accused of stabbing a Celtics fan after Thursday night's game. .... Witnesses told police that two groups of about six people starting arguing over the outcome of Thursday night's game when the suspect, who was wearing Miami Heat clothing, pulled out a large knife and stabbed the victim. The stabbing occurred along a fence near the TD Garden and Beverly Street.
Stay classy, Heat fans...