A white Pennsylvania police officer who shot and killed an unarmed black teenager was acquitted by a jury Friday.

Former East Pittsburgh police officer Michael Rosfeld was acquitted on homicide charges after fatally shooting 17-year-old Antwon Rose II outside Pittsburgh, according to the Associated Press.

The shooting and subsequent investigation sparked protests in the city.

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Rosfeld shot Rose last June after the teenager was involved in a drive-by shooting and ran away after the car was pulled over. Rosfeld shot Rose in the back, side of face and arm as he ran away.

Rosfeld said he thought Rose or another passenger in the vehicle had a gun and was pointing it at him.

The jury made the decision to acquit Rosfeld after less than four hours of deliberation.

The jury viewed video of the fatal shooting during trial.