(Reuters) -A Michigan prosecutor said a charge of second-degree murder was filed on Thursday against a white police officer who fatally shot a Black man during a traffic stop in Grand Rapids two months ago. The decision to charge officer Christopher Schurr in the April 4 shooting death of Patrick Lyoya, a 26-year-old Congolese refugee, was announced at a news conference by Christopher Becker, the Kent County prosecuting attorney. The killing of Lyoya outraged members of his family and touched off protests by activists who condemned the shooting as an example of unjustified deadly force by poli…