James Mack, a 50-year-old White man, was found dead on the front porch of a Southeast Portland home near Southeast 154th Avenue after a reported shooting on November 25, 2023. Police arrived at about 10:14 p.m.; the medical examiner determined Mack died of a gunshot wound and ruled the death a homicide. Detectives from the Portland Police Homicide Unit took over the investigation. The suspect or suspects had fled before officers arrived and no arrests were made that night.

Investigators later identified 27-year-old William M. Maingi of Gresham as a suspect. A Multnomah County Grand Jury returned an indictment on December 6, 2023, and Maingi was arrested on December 10, 2023, with assistance from the East Metro SWAT team. He was booked on charges of Murder in the Second Degree and Felon in Possession of a Firearm. Authorities have not released a motive or specifics about what led to the shooting.

If anyone has information about James Mack, his final movements that night, or the circumstances near Southeast 154th Avenue on November 25, 2023, please share what is known.