A 26-year-old man was fatally shot by a neighbor at a Southeast Side apartment complex early Sunday, according to his mother, who said she held her son in her arms after he was wounded.

Sebastian Robles was shot Sunday at the Reveria Apartments, where he lived with his mother, Audry Robles.

Audry said the 39-year-old suspect, whom she described as someone who had previously had a cordial relationship with Sebastian, knocked on their door shortly after 1 a.m. Sunday.