Police are investigating after a man was found shot dead inside of a stairwell of a building in Northwest, D.C. late Sunday night, Metropolitan police said.

Officers responded to a shooting in the 600 block of Newton Place around 9:28 p.m., authorities stated.

When they got to the scene they found a man in a stairwell of the building suffering from gunshot wounds. He was pronounced dead at the scene.

The victim has been identified as 41-year-old Antwaun Smith. Police arrested 36-year-old Antonio Williams, of Northwest, DC. Williams. He has been charged with second degree murder while armed.