It took a jury less than two hours to reach the unanimous decision to sentence a convicted killer to death.
The jury of nine women and three men sentenced 31-year-old Omar Sharif Cash to die by lethal injection for the 2008 killing of Muliek Brown outside a car wash in the Frankford section of Philadelphia, according to prosecutors.
Earlier this month, it took the jury just 35 minutes to return a guilty verdict in the execution-style slaying.
Cash claimed he shot Brown in the back of the head in self defense as Brown polished the wheel rims of his car.
"This was a horrible and senseless crime," said District Attorney Seth Williams. "Mr. Brown was hardworking father whose death is a loss for the entire city of Philadelphia.
"His death penalty verdict holds Omar Cash accountable for his unthinkable actions. My thoughts and prayers are with Muliek Brown’s family and friends, and I hope this will give them some sense of justice."
Cash is already serving a life-without-parole sentence in Bucks County for murdering a man he carjacked and repeatedly raping the man's girlfriend.
The jury wasn't told about that case during the trial.