A man who opened fire on Philadelphia police on Aug. 14, wounding six officers and triggering an hourslong standoff, was a convicted felon who wasn’t legally allowed to possess a firearm.
The shooter, who has been identified in media reports as 36-year-old Maurice Hill, was first arrested at the age of 18 for possessing a gun with an altered serial number, according to public records (pdf). He has since been arrested nine more times, including six arrests that involved illegal possession of guns.