JUNIATA - Philadelphia police are investigating a stabbing say left a cab driver dead in the Juniata section of the city early Tuesday morning.The incident occurred just after midnight on the 400 block of I Street.According to police, paramedics were responding to a report of an accident when they found a car that had struck a parked vehicle.They then located a man lying face down in the street nearby, bleeding heavily from a laceration to his neck.The victim was pronounced dead at the scene.AdvertisementPolice say the car was an unmarked, but registered cab.