Matthew Arellano was 18 when he was shot in the early morning hours of July 5, 2019, in Denver’s Harvey Park neighborhood. Police found him suffering multiple gunshot wounds in the 2500 block of South Patton Court at about 1:40 a.m.; he was taken to a hospital and pronounced dead. The circumstances that led to the shooting were not immediately clear.

Within days, Denver police arrested 18-year-old Isaiah Ruiz and held him for investigation of first-degree murder in connection with Arellano’s death. Initial reports did not disclose a motive for the killing, and details about what preceded the encounter remain limited.

If anyone knew Matthew, saw activity in the area that night, or has information about what happened on South Patton Court in the early hours of July 5, 2019, please share what is known.