When Nathan sacrifices himself saving brother Peter Petrelli and flying of to explode in the sky. They could have simply stuck a knife / or shard of glass in the back of his head. As per earlier episodes with Peter and Clare Bear. And 'froze/killed' him. Actually why couldn't Peter fly? Just no need for Nathan to die, unless there is moral statement regarding salvation or redemption and it just ain't that deep. There seems to be a new breed of serialised drama which follows a basic pattern of lots of characters and little air time per person as in soaps. Little character depth or plot development. As entertaining as the series was there could never be a real ending, and ultimately this just falls flat.
