A late-night fight at a house party in Mattapan turned fatal on Easter Sunday, March 27, 2016. A verbal argument on River Street moved outside, where a group clash escalated; some participants reportedly pulled wooden stakes from the ground. During the melee, 26-year-old Chaz Burton of Lynn was shot twice in the torso and was pronounced dead at the scene after police responded to a call about a stabbing at about 2:10 a.m. A man in his 20s suffered a non-life-threatening stab wound and was taken to a hospital.

In the months after the killing, investigators charged multiple people. Three men were charged with murder in connection with Burton’s death: Benjamin Tate, 23, of Jamaica Plain and Roxbury; Abdullah Yasin, 23, of Jamaica Plain; and Fabian Llano, 26, of Lynn, with Llano reported as at large when the charges were announced. Six other individuals, including some relatives of Tate, faced charges ranging from assault and battery with a dangerous weapon to misleading investigators.

Did anyone at the Mattapan party or living nearby see what happened that night or recognize the people involved?