GANGSTERS posing as police officers stabbed a dad and his friend 42 times in a savage execution outside a school. Kosovan mobster Besnik Berisha, 44, and his head henchman Kaziku Tuwisana, 33, tied up the victims' bodies before dumping them in a van and car to dispose of.... Was he still alive when he was thrown in the hedge all alone?... There could be no reason for leaving your victims alive, once restrained and kidnapped, to report what you had done or to exact revenge." Berisha was caged f