She told her husband or partner fellow(whatever) not to kill Dean, and i wz like aw you must kinda like him or think he's funny, and he didn't want Sam to kill her. It was gutting when he did, but oh well....

is this the beginning of Sam turning evil?

yea, I defiantly felt bad when Sam shot her, I don't think he;s turning evil, but hes not as innocent as he used to be, just last season there was an episode where Sam was questioning whether they all deserve to die. Dean believed so and Sam wasn't sure and now its the other way round..

I noticed how the boys seemed to switch ways of thinking when it comes to demons in that scene. I mean, Dean had said that Sam should have wasted Ruby but instead he made chit-chat. When Dean and the demon who was in Casey were talking it made me see that he was starting to have a change of heart. I felt really bad when Sam went ahead and shot her even when Dean was telling him to stop.

I think sam was acting a little strange and seemed to kill her with no remorse but she was evil and she probably would have gone and got someone else killed in the future.

yeah i felt so bad for dean when sam shot her! and she did say not to kill him and was begging the priest to go

ya she would have totally still killed more people once she got out!

Even though she wasn't going to kill Dean, what makes you think she wouldn't kill any innocent human beings if she was let free.

Sam still needed to kill her the same as he did Madison. Although she wasn't ging to kill Dean one simple act cannot change one's nature. She was a threat to mankind as poor Jimmy learned so she had to be put down. Afterall she never said she was going to make an attempt to never kill again the way the vampires did in Bloodlust.

I bet she would've killed Dean. I mean, she was trapped. She prentended to be nice so that Dean would trust her, she's like all the other demons.

A demon's a demon, which is why I'm having a little trouble with Sam trying to trust Ruby.

yes, because she was a demon!!!!demons are not good!!!