Original sentence: Due to the case at the Kamloops school being what kickstarted the nationwide investigations into mass graves at residential schools, the lack of human remains have expaerated claims that the mass graves are a hoax
Edited sentence: Due to the case at the Kamloops school being what kickstarted the nationwide investigations into mass graves at residential schools, the lack of human remains have expaerated claims among the Canadian Conservatives that the mass graves are a hoax