Matthew Rivera, an 18-year-old Hispanic/Latino male, was killed on the evening of December 2, 2021, after a confrontation that began inside a neighborhood deli in East Harlem and spilled out into the cold air on East 119th Street. Not long before 8 p.m., police were called to the block near Third Avenue, where Rivera had been shot in the torso. When officers arrived, they found him gravely wounded on the street, the fight already over, the gunfire already faded into the city’s usual noise.
Paramedics rushed Rivera to NYC Health & Hospitals/Harlem, but he did not survive. In the first wave of public reporting, the picture that emerged was of a fast-moving argument—words inside the deli, bodies pushing and surging onto the sidewalk, and then the sudden, irreversible turn when someone pulled a gun and fired. In the hours that followed, investigators began piecing the scene together from witness accounts and surveillance footage, while the neighborhood returned to routine around a patch of violence that refused to make sense.
With no immediate arrest announced, the search for the shooter shifted into the familiar rhythm of an NYPD manhunt: detectives canvassing, tips being called in, and a surveillance image released publicly as police asked anyone who recognized the person to come forward. Early reports emphasized how quickly the conflict escalated—an ordinary night, an ordinary storefront, and then a shooting that left a young man dead and a community staring at the same questions that follow so many street killings: who did it, and why.
Months later, police identified an accused gunman. Public reporting said Patrick Reid was arrested and charged with murder and criminal possession of a weapon in connection with Rivera’s death, with police describing him as the man involved in the deli argument that erupted onto the street. The arrest reframed the old surveillance-photo appeal into a named case, but the available public accounts focused mainly on the charge itself and the allegation that the dispute was the fuse that led to the shooting, rather than offering a detailed public explanation of motive beyond the confrontation.