theories re: snape killing dumbledore

their are so many theories running around. some say that snape is good, some say he is bad. but i think snape is still on the good side. he and dumbledore had a prearranged decision. remember the argument they had. so that snape can join voldy's gang again and then pass on the secrets to the order.

I also have pity for Snape. I was just rereading the scene where James and Sirius torment him in front of half the school. No wonder he is the way he is after his childhood--that would mess anyone up. I don't think Snape killed Dumbledore because he had turned on him. He had no choice. He was bound by that spell. Draco couldn't do it so Snape had to. I think Dumbledore already knew about the pact Snape was forced to make and knew he was going to die one way or another. Snape had to run because he was going to be a wanted man--no one was going to believe the truth after what happened. But when they were running away he warned Harry to stay safe, didn't he? He could have killed Harry or dozens of other people but he didn't. As I was re-reading book 5 I was wondering how Harry was going to survive without Dumbledore's advice and help he always gave and then I remembered the portraits. All the former headmasters have portraits at the school. He will live on in some aspect with that. I can see Harry going to the portrait for help, lol. But I wonder why some portraits are more intelligent then others. Some just wave and smile while others carry conversations and know stuff (like the ones in Dumbledore's office). Anyone know the reasoning behind that?

I have just read through all of these responses and there's some really good stuff here. Someone mentioned the unbreakable vow, and this is a point that confuses me a little bit. If it hadn't been for that, then I would actually be more inclined to think of Snape as good. If Dumbledore was aware of the unbreakable vow Snape did with Narcissa to kill Dumbledore if Draco unable to do it, then there would be no reason for Dumbledore to plead for Snape to kill him. He would already know that per the curse it would have to happen. But then again, with the vow happening at the beginning of the book the way it did, if Dumbledore didn't know about it, then the whole book kind of unfolds as a predetermined thing, unbeknownst to anyone else. I could go on and on, but the fact is I just can't wait to read book 7 and find out for sure!

im not sure about this one. i mean wasnt dumbledore buried? so therefore he would have been buried alive? hmm, i am looking forward to the new installment though. i think it will be good to finally find out if hermione and ron get together :D

I think snape was acting on Dumbledores orders when He killed Dumbledore. Dumbledore doesn't want to risk the innocence of Draco so he assigned Snape to do the task. This is when he knew about the unbreakable vow he Snape made with Narcissa. Even though harry was really doubting Snape's loyalty with Dumbledore, I think Dumbledore has his reasons for trusting Snape.

I got info out off my friends telling Dumbledore will be killed by Snape.. yet, I haven't read the HP book. We will find it out this july 10.