A 21-year-old D.C. man has been arrested in a fatal shooting in Southeast Washington.

Ariston Jamal Dickson was arrested about 6 p.m. Tuesday by members of the Capital Area Regional Fugitive Task Force.

He was charged with second-degree murder while armed in the shooting death of 23-year-old Robert Maurice Lesueur, of Northeast.

Police said Lesueur was found suffering from a gunshot wound inside a building on the 1700 block of 27th Street SE about 1:30 a.m. Monday.

Anyone with information about the incident can call police at 202-727-9099.