Red Lake is indeed a reservation in MN
I went to the Academy with some Red Lake officers. Crime on the Rez is like crime in the ghetto; its not over reported because people seem to just expect it to happen.
I bet if that had happened in an afluent suburb, they would be screaming it from the roof tops.
It only happened an hour or two ago though, so they probably don't have enough information for a detailed story yet.