A cookout at the Eleanor Roosevelt Playground in Bedford-Stuyvesant turned deadly in the early hours of May 4, 2018. Johnny Mathis, 29, was shot in the head after an argument at the gathering near Lewis and DeKalb avenues; he was found unconscious around 1:40 a.m., taken to Woodhull Hospital and pronounced dead. Mathis was a father and left behind a young son.

Police identified 43-year-old Herman Dunston as the alleged shooter. Reports say Dunston, who lived across the street from the playground, may have been an unwelcome guest and had a confrontation with Mathis before the fatal shot. Dunston was arrested later that month and charged with murder and criminal possession of a loaded weapon; he was scheduled for arraignment in Brooklyn Criminal Court.

If anyone was at the party or knew Mathis or his movements that night, can you share information that might help clarify what happened?