When 18-year-old student Henry Nowak was fatally stabbed by Vickrum Digwa, a British Sikh, a horrific local crime quickly escalated to international headlines due to a catastrophic law enforcement failure. Spurred by Digwa’s false accusation of racism, responding officers immediately handcuffed the mortally wounded teenager, even as he told them nine times that he could not breathe, and four times that he had been stabbed. That Nowak was arreste…