She looked out through his eyes, laughing as she saw his brother's expression.
Oh, Dean, you can't pretend this didn't happen. Candid camera and blood all over Sammy and look at you, trying to figure out what the hell's going on and what the hell you're going to have to do about it.
"Wipe your prints, then we go."
She laughed harder. He was caught. Between his father's last order and his love for Sam. All she had to do was push him. Give him a good reason. He'd never survive killing his brother. And her work would be done.