In part I’m responding to this post, but this is also something I’ve wanted to clarify for a while. On of the BIG reasons I am so angry about Emma, why I can’t buy what many say we were supposed to buy concerning her death, has to do with the way the scene was acted and shot.
It’s not just that Sam ended up killing her. It’s the way he does it that really gets to me. I’ve watched that scene over and over, but it just doesn’t make a lot of sense. Sam stopped at the door and listened to Dean trying to talk Emma down. When he finally busted in and pointed the gun at her, she was not attacking, not advancing toward either party. There was nothing aggressive about her stance; the knife in her hand held down, pointed at the floor. She looked scared. There was no urgent reason he needed to kill her. Sam pauses again and watches her while she begs, then he calmly shoots her in the chest.
Later he chews Dean out for trying to talk to her down instead of killing her right away. That’s hypocritical based on his usual stance, and how many times he’s yelled at Dean for not wanting to give monsters a chance. Then he , brings up Amy as the reason Emma should die, too, and then claims “she really wasn’t yours anyways.” No hint of sympathy. No “I’m sorry I had to kill your child in front of you.” No, “are you okay?” It’s…there is so much wrong here.
You are right it was horribly cold blooded. Dean might very well have succeeded in talking Emma down, except Sam killed her while she was in a non-threatening position.
And then yelled at Dean for not immediately killing a) a young woman who had not yet hurt anyone and who was scared and confused b) Dean’s own daughter and his niece.
Meanwhile Dean’s a bad guy for shooting at Jack after he’d mind controlled people, killed his own mother, whether inadvertantly or not who knows, and had glowing gold eyes(and yellow eyes when associated with anything to do with Lucifer is usually really never anything good).
But poor Emma, his own child, he was just supposed to gun down and not even try to help.