On December 14, 2021 at approximately 12AM Transit Police officers on patrol at the MBTA's South Station heard screams coming from the Red Line outbound platform. Officers immediately proceeded in that direction and located two victims, a male and a female both 38 of Boston, bleeding profusely and suffering from an apparent stab wounds. Officers also observed a male, later identified as Conroy Byfield, 45, of Mattapan standing in a fighting stance holding a knife facing the victims. Officers issued verbal commands for Byfield to drop the knife and move away from the victims. Byfield was compliant.
Initially it appears there was a verbal confrontation which turned physical at which time Byfield is alleged to have stabbed both the male and the female. Both victims sustained serious but non life threatening injuries and were transported to a local area hospital for emergency treatment. Byfield was placed into custody and transported to TPD HQ for the arrest booking process.