Penn Hills police

Sarah Boden / 90.5 WESA

Allegheny County District Attorney Stephen Zappala will not charge a Penn Hills police officer in the July 14 shooting death of 20-year-old Onaje Dickinson.

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The Allegheny County Police said Monday that a Penn Hills police officer killed a homicide suspect in an exchange of gunfire Sunday night and a second suspect, 15-year-old Myzle Ford, was arrested.