Around 8:15 p.m. on Norfolk Street at Woolson Street, Doogs reports.
Boston Police report the victim was declared dead at the scene.
Police say that on arrival, police found Rafael Santiago, 35, of Malden, with a gun in his hand.
The officers were able to quickly deescalate the potentially deadly encounter, convincing the armed suspect to drop the firearm after issuing numerous verbal commands. The suspect was then placed in custody and the revolver was safely recovered.