Matthew Rivera was an 18-year-old Hispanic/Latino male killed on the evening of December 2, 2021, after a confrontation that began inside a neighborhood deli in East Harlem and continued onto the sidewalk of East 119th Street near Third Avenue. Police were called just before 8 p.m.; officers found Rivera gravely wounded from a gunshot to the torso and he died after being taken to NYC Health & Hospitals/Harlem.

Initial reporting described a fast-moving argument that escalated from words and pushing inside the deli to gunfire outside. Investigators used witness accounts and surveillance footage and released a surveillance image while asking the public for tips. Months later police identified an accused gunman and public reports said Patrick Reid was arrested and charged with murder and criminal possession of a weapon in connection with the killing; accounts focused on the allegation that the deli dispute led to the shooting without laying out a detailed motive.

If anyone saw the argument, the moments afterward on East 119th Street, or recognizes the people involved, please share what was seen with investigators.