Open this photo in gallery: London, Ont., June 8: People pray at a vigil outside the London Muslim Mosque for the victims of Sunday's deadly vehicle attack on a family of five, four of whom were killed.Nathan Denette/The Canadian Press On June 6, 2021, four members of a Muslim family – spanning three generations – died together in a vehicle attack in London, Ont., that raised urgent questions about how communities and the legal system should deal with racist violence. More than two years later, those questions are top of mind again in a Windsor courtroom, where the Crown will...