Roy and Walt walked in the room. Sam woke up almost immediately, but not quick enough. Roy motioned for him to sit up and stay quiet. Walt knew Dean's habits. He reached past Dean and slid his gun out from under his pillow. They waited for him to wake up. Roy was surprised it was taking so long. It was a full five minutes before Dean stretched and slid his hand under his pillow.
"Looking for this?" Walt asked.
Dean sat up and Roy noticed that he immediately looked for Sam. That sealed it. They were going to have to kill him, too. He would never let this slide. The proof was that he had been with this freak for months after he popped Lucifer out of the cage and not taken care of the problem yet.
"Roy." He recognized his voice. Didn't matter. He was dead right after Sam anyway. He took his mask off. After looking at him, Walt did the same. Sometimes his brother annoyed him. It's like he couldn't think for himself.
"You think you can start the Apocalypse and walk away?" he asked Sam.
"Just let me explain." Ah, the legendary puppy eyes. Did he seriously think that would work. "Please," he added. Apparently he did.
Before Sam could say another word, Roy pulled the trigger and watched as Sam slammed back into the headboard. Dean started to go to him.
"Stay down," Walt ordered. At least he wasn't completely useless.
"Kill him," Roy said.
"What? Killing Sam was right, but Dean…," Walt protested.
"We just wasted his brother. Do you want Dean Winchester on your ass for the rest of your life?" He was pretty sure nobody would want that.
"Let's get it on. But I'm going to warn you, when I come back, I'm gonna be pissed," Dean threatened.
That did it. For one thing, he was obviously completely nuts. When you die, you don't get to come back. And for another thing, he could think whatever he wanted about his brother, but nobody threatened him. His brother obviously didn't want to do it, so he would do it for him. He pulled the trigger and sent Dean into oblivion.