Season 2, the final episode

Thanks for the response. I didn't like the finale either. You're right, Claire was cool when she was trying to kill herself and using her powers but now with the whole whiny "I just wanna be normal! Oh no! They killed my daddy! Oh no! My daddy's back!" story arc it seems like it's just lame filler to take up the rest of their hour long show. To answer your questions:
1. It was a coffin in a fresh grave that Adam was put in. Since Hiro can stop time it shouldn't have been too hard to dig the grave or put Adam in it, he doesn't have super strength or the ability to create matter though, so how he got a free grave, coffin and headstone without arousing any suspicion is beyond me.
2. Parkman didn't chase the assassin because he couldn't see where they were and he was concerned more for Nathan's well-being than with chasing after the shooter. What really gets me about this is that noone was curious as to what he was about to say after he was shot, none of the reporters stopped to ask, "Why would he call a press conference and get shot if he didn't have something important to say.

3. As for Peter's healing powers, he can heal only himself by power. He never met Linderman so to heal others he would need to inject them with his blood and since any cut he could make on his body would heal before he could get enough blood out he wouldn't be able to drip it into Nathan's mouth or anything. He could cut a major artery but most of that blood would be wasted and he would still need someone there to catch some of it in a cup or something and force Nathan to drink it.

As far as my comment earlier on killing off characters goes, we have to remember that every character in this show is subject to some means of resurrection except those whom Sylar has already eaten the brains of.

Are you sure episode 10 is the final episode of season 2? So after the new year, it will be season 3? Isn't it weird to have only 10 episodes per season? The normal count is 20.

Anyway, I think the grave that Hiro put Adam is his father's grave. It's a fresh grave, remember? And wouldn't Adam die due to lack of oxygen? I don't think his healing power can heal that. LOL! And speaking of Peter, he had met Adam and Claire. They both share the same power, i.e. healing and their blood can heal. I am sure Nathan will be back after Peter found out that he can heal or bring people back to life, just as how Claire did to her step-father.

Thanks for the comment. Yes, because of the Hollywood writer's strike episode ten was slated as the last episode of volume two. The new episodes in Jan will be volume three. I wasn't saying Peter couldn't heal Nathan at all, but in the current situation it's impossible since he doesn't have Linderman's power or a syringe to take his blood and any cut he could make on himself would heal before it could bleed. It needs to be intravenously injected.

Possibly, although if we're going to talk about it scientifically they would also have to be the same blood type as the person getting the blood (or O-neg), otherwise their body would reject it and it would end up doing them harm instead. Obviously Angela didn't like the fact that they shot her son but she told them on the phone that it was, "Necessary". If she didn't approve then she would have been irate, not just moderately displeased.

Preface: I've read comics too much, and therefore know the psuedo science that they use.

If the blood heals everything, then it should be able to stop the anti bodi8es from attacking, and possibly the blood cells will heal themselves to be the same type as the body that they're in. And I don't think Mama Petrelli gets irate loudly. I seriously think she gets irate quietly then puts out hits on people who made her irate.

Agreed on the first part, but I really don't think Angela sounded as mad as a real person would sound if you called them and told them, "Oh btw, we just killed your son." She knows they killed him but she clearly illustrates that she cares more about the company's agenda than the life of her own son.