Well they said that the remains were under boulders (which the sagas said they threw in after the body), the remains had battle trauma which was likely the caus

Well they said that the remains were under boulders (which the sagas said they threw in after the body), the remains had battle trauma which was likely the cause of death, and radio carbon dating is spot-on. Of course that could all just be coincidence, but I don't think they are even saying this is for sure 100% the person, it that it potentially corroborates the story.