Emerson Desouza, 45, was shot and killed near his work truck on Sackett Street in the Mayfair neighborhood of Philadelphia on the morning of November 22, 2023. He lived nearby on Wellington Street and was originally from Rio de Janeiro, Brazil. The confrontation that led to the shooting involved a neighbor, 42-year-old Walus Mateus, and witnesses say the argument escalated before Mateus allegedly shot Desouza once in the chest. Desouza was taken to a hospital but was pronounced dead.

The Philadelphia Police Department arrested Walus Mateus less than a day after the shooting and charged him with murder, carrying an unlicensed firearm, and related offenses; reports say he fled the scene but was quickly located. The motive for the deadly encounter has not been publicly disclosed as the investigation continues. If anyone knew Emerson, his routines on Sackett or Wellington Street, or has information about the dispute, please share what you know.