Their opinion is important, but perhaps not definitive either. I may have told this story before, but a boss of mine was killed in a bicycling accident while visiting on business in our little town in the Sierra. He was black, and his widow was convinced "the Klan got him," and that the sheriff's office was in on at least a coverup when the county took several weeks to conduct their investigation rather than the overnight results you see on teevee shows. It made for some awkward times on top of a tragic situation. When the narrative is execution, rather than fear, that is what you will hear re-transmitted. It doesn't add independent confirmation of anything.