The Boston Police Department reports a man in his 20s was shot around 9:45 p.m. on Friday at 46 Rexford St. in Mattapan. He was taken to a local hospital, where he later died.

The victim was the fourth person to be murdered in Boston on Friday. Sometime before 8:30 p.m., two people were killed on Dorchester Avenue in South Boston. Around 10:20 p.m., a man was stabbed to death on Groom Street in Dorchester.