UPDATE: Suspect in Centennial Neighborhood Homicide Arrested

Portland Police Badge

December 11, 2023 11:30

On November 25, 2023, Portland Police Bureau homicide detectives responded to a shooting in the Centennial Neighborhood to begin an investigation into the death of 50-year-old James Mack. Through their investigation, detectives were able to identify William M. Maingi, 27, of Gresham, as the suspect involved in the homicide.

On Wednesday, December 6, 2023, a Multnomah County Grand Jury indicted Maingi for the murder of Mack.

On Sunday, December 10, 2023, homicide detectives, with the assistance of East Metro SWAT, arrested Maingi. He was transferred to the Multnomah County Detention Center and booked on charges of Murder in the Second Degree and Felon in Possession of a Firearm. The victim’s family has been notified of the arrest.

The case remains under investigation, and no further details are being released at this time.

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***Original Message Below***

James David Mack is 50-years-old, not 51 as previously indicated. We regret the error.

###PPB###

***Original Messages Below***

The victim in the fatal shooting in the Centennial Neighborhood is identified as James David Mack, 50, of Portland. His family has been notified of his death. They provided the attached photograph for public distribution.

The Medical Examiner determined that he died of homicide by gunshot wound.

No arrests have been made. The case remains under investigation. If anyone has information about this case, please contact Detective Shaye Samora at Shaye.Samora@police.portlandoregon.gov or 503-823-0768, or Detective Tony Harris at Tony.Harris@police.portlandoregon.gov or 503-823-0441, and reference case number 23-306127.

Photo description: Portrait of James David Mack

###PPB###

***Original Message Below***

A man is deceased after a shooting in the Centennial Neighborhood.

On Saturday, November 25, 2023 at 10:14p.m., East Precinct officers responded to a report of a shooting at a house in the 3700 block of Southeast 154th Avenue. When officers arrived they found the adult male victim deceased on the front porch.

The suspect or suspects left before police were called and no immediate arrests were made.

Detectives with the Portland Police Homicide Unit are responding to the scene to investigate. During the investigation, Southeast 154th Avenue is closed between Southeast Powell Boulevard and Southeast Francis Street.

If anyone has information about this case, please contact Detective Shaye Samora at Shaye.Samora@police.portlandoregon.gov or 503-823-0768, or Detective Tony Harris at Tony.Harris@police.portlandoregon.gov or 503-823-0441, and reference case number 23-306127.

The PIO is not responding to the scene. Additional information will be released when appropriate.

This is the 67th homicide investigation of 2023 in the City of Portland.

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