That is not a rainbow. The skies are filled with forest fire smoke. It is a smokebow.
One local Memorial to the 215 unmarked graves of children who died at the former Kamloops Indian Residential School. Shame on the Catholic Church and shame on Canada. That is just one of the schools in Canada where First Nations parents were forced to send their children. Add up all the schools and the number of dead children as well as the physically and and sexually abused children is enormous.
The local First Nations community will start searching the Indian Residential School here with ground penetrating radar. Read the CBC Report
Edit: It continues with more bodies found in Saskatchewan. See Murray Sinclair