Last night around 10:11pm, officers from District D-4 responded to a radio call for a person shot or stabbed at 21 Castle Court. On arrival, officers located the victim, John A. Austin, 24, of Boston suffering from a stab wound to the chest. The victim was transported to Boston Medical Center where he later succumbed to his injuries. This incident occurred following a personal dispute between the suspect and the victim. Police believe that the suspect and victim are known to one another.The Homicide Unit is investigating this case.