Sam, Dean and Meg watched the cops take Cas away, who went with them willingly. Too willingly. As soon as the door shut behind them, Dean turned to Meg.
“You called the cops?” he exclaimed. “Have you lost your mind?”
“No” Meg shrugged. “Cas is a serial killer. He needs to be put behind bars. I made the right call, no pun intended”
Dean conjured his phone and dialed a number.
‘The number you’re trying to reach is currently unavailable’
“Damn it” Dean cursed.
“What?” Sam asked.
“I’m trying to reach that female inspector” Dean explained.
“Who? Inspector Roberts?” Meg guessed. “She’s dead. Cas shot her. I was supposed to do it, but I couldn’t”
“You couldn’t? Because Cas told me you didn’t hesitate to kill Heather” Dean snapped.
“That was different. I lost control. Cas was banging that slut” Meg defended herself.
“So you were jealous. Is that why you called the cops? Because that can be the only reasonable explanation as to why you would be so stupid to turn him in” Dean said angry.
“I don’t get it. Why is it such a bad thing that he’s locked up? He’s a killer” Meg said.
Dean turned to Sam for support, but he just pulled his shoulders.
“Prison is crowded with criminals. Thiefs, murderers, rapists” Dean continued passionately.
“Yeah, that’s why it’s called prison” Meg replied obvious. “Cas will fit right in”
Dean shook his head heavy. “No. He won’t last a day” He looked from Sam to Meg and back. “You two can spend your time gloating, but I’ll do what has to be done”
He turned around, grabbed the keys on his way to the door and walked out.