AN: Hey so this is my first fic ever and I hope it doesn't completely suck. Constructive criticism is more than welcome, it's encouraged. Time line wise this story takes place in season 5 of Supernatural and season 16 of Law & Order: SVU. I'm not a native english speaker and this has not been Beta-read, so if anyone would like to volunteer, it'd be appreciated :) Oh and this most likely will become a triple crossover later on with Criminal Minds.

I of course own neither of these three awesome TV shows, the credit for that goes the respective owners. This also isn't for any commercial purpose.

Dean Winchester leaned back in his chair, nothing more than an attempt to appear relaxed to whoever was watching him right now through the two-way-mirror. Of course his hands being handcuffed to the table in front of him was making it a lot harder for Dean to look relaxed. Sam was going to get him out of this, that he was completely sure of, it wasn't the first time the two brothers had found themselves in a situation like this. Thinking of that, how the hell did he get locked up again. Just three days ago it had seemed to be a pretty regular hunt – at least Apocalypse-regular.

Three day earlier

"So demon hunting in New York City… that's a new one", Dean mused as they entered the Big Apple.

"It would have been a lot nicer if this demon would have gotten the idea to torture people in NYC some time the end of the world wasn't right around the corner", Sam answered from the passenger seat of the Impala.

"No sight-seeing after we've ganked this son of a bitch?"

"Dean, we kinda have bigger things to worry about right now!"

"Yes and we don't have any idea what our next move is. We're no closer to killing the devil and unless this demon has for some reason some great intel on Lucifer we won't be any closer to killing him when this hunt is over."

"Ok. But only for two days."

"Two days it is, Sammy. So the only reason we're sure this is in fact the work of a demon and not some crazy person is the sulfur found on and around all three victims, correct?"

"Yeah, there are no mentions of any satanic markings in the apartments or on the vics. All three women had been stripped naked, tied to a chair and stabbed 18 times. The crime scenes all look incredibly similar."

"Do we have any connection between the women or any other idea why the demon is targeting them specifically?"

Sam was typing frantically on his laptop. "Well they're all from New York aaaaaand two of them went to the same school. Same class actually. It's a big school so they might not have known each other."

"I doubt it. What about the third woman?"

"She was two years older than the other two. Different school, but from the same area. They could have all easily been connected to the same event, thing or person."

"Then we just need to find out what that is, if anybody else is involved and why the hell a demon would care about it."

Meanwhile at another crime scene

Detective Sonny Carisi Jr turned away from the lifeless body still tied to the chair, the blood pooling around her feet. He had counted the stab wounds, he wasn't sure why, the rest of the crime scene looked exactly as it had with the first three victims, there hadn't been any doubt in his mind he was going to count 18 wounds. But in his first months at the SVU he had learned to be thorough in his investigations and to never jump to conclusions.

Sergeant Benson's voice brought him back to reality "What do we have, Carisi?"

"Brenda Rienson, 24 just like Hannah Grenman and Lily Fisher, no forced entry, as far as I can tell neither defensive wounds nor sexual assault. Again 18 stab wounds, two to each thigh, arm and the left breast, three to the right, 4 to the stomach and 1 in the neck. Without having another look at the photos of the other victims I'd say it looks exactly like it."

His superior nodded solemnly "That's the fourth in three days. Who found her?"

"Her roommate, Amanda is talking to her right now. Oh by the way, it looks like sulfur is all over the crime scene as well."

"Thanks, Carisi."

He hadn't talked to the roommate but he was willing to bet this month' salary on her not being home for less than a day. Whoever this sick son of a bitch was, he moved fast and frankly that scared the crap out of the young detective. So far they had figured out that the previous victims had known each other, Lily Fisher had even been friends with the other two, but since Lily seemed to have known a lot of people and been friends with almost as many they were still not sure how to predict who the next victim might be. Also why the fuck was at every scene sulfur all over the place. Not even the coroner or any of the crime scene guys had any idea how or why. Carisi decided this was probably the most fucked up case he had to work so far, this was going to be a long day and there was no sign of improvement in sight.

Now

The six of them all watched the man on the other side of the two-way-mirror. Next to the five cops even ADA Barba was silent for once, though Carisi wasn't at all surprised that it was the usually so eloquent man who broke the silence.

"How?"

"I…. have no idea" his Sergeant was at the end of her wits "we're running his finger prints and DNA right now, just to make sure. But I'm pretty sure the man in there is in fact Dean Winchester."

"Who apparently is alive", Fin remarked dryly "again. After being dead… again."

"Have you informed the FBI yet?", the counselor inquired.

"No, I'm waiting for the DNA results in case this actually is just some incredible look-a-like with the same sick taste for torturing women. Nick, Carisi, I want you to question him. Carisi, you think you can be as understanding as possible? Don't show any disgust at anything, unless he does so too. Make him feel as understood as possible. Nick, feel free to show all your emotions honestly."

Three days ago when Carisi had decided this was probably the most fucked up case he had worked on he wouldn't even have come up with this scenario in his worst nightmares; He was about to question the officially twice-deceased, FBI-most-wanted Dean Winchester.

Dean looked up from the table as the door opened and two of his arresting officers walked in. Plastering a big smile on his face he spoke up "finally! It's been getting boring in here."

He wasn't going to enjoy this whole thing one bit, so why should they. So far neither of the two looked overly impressed by his cheery attitude. The blond one took a seat across from him, the other one opted to stand somewhat menacingly to his right, next to the table.

"Good cop, bad cop, I like it. Predictable, but hey, maybe the two of you will spice it up a little", he smiled brightly at the man right in front of him. At least he seemed a bit taken aback, his partner not so much.

"I'm Detective Amaro and this is Detective Carisi and you are Dean Winchester, so why don't we cut the crap and actually talk about what you did."

"You think I am Dean Winchester?", he tried to go for incredulous, hoping they were not quite as sure as they seemed about his identity.

"We know you're Dean Winchester!", the dark-haired detective replied completely unfazed.

"But didn't he die like 2 years ago? In an explosion or something?"

"Look, Dean – may I call you Dean? – we ran your DNA, we know who you are", the other detective – what was his name again? Caruso, no, Carisi, yeah that was it – said earnestly.

"Ok, you got me", Dean nodded, "but where would be the fun in all of this if I didn't mess with you guys, right." The façade of the not-caring, cheery guy back in place.

"We thought you already had enough of that after killing Hannah Grenman, Lily Fisher, Megan Jace, Brenda Rienson, Taylor Connor and Kali Dooze", with every name Amaro placed another crime scene photo in front of Dean, the first five photos looking eerily similar.

Dean opted for not saying anything for a change.

"Why did you kill them?"

Dean stayed silent.

"It wasn't pure chance; we know that because the first five victims were all connected to each other. Did you meet them in a bar and not one of them was interested in going home with you? They'd be pretty lucky to get with someone like you right? There probably was not one guy in that bar that was more attractive then you, was there? And then these average women didn't go for it, didn't go for you", Amaro was getting more and more agitated with every word.

"Detective Amaro, I'm really flattered, but I don't really have time for dating right now sorry", Dean grinned up at the seething detective.

"Dean", Carisi tried this time, "why? Why did you kill these six women? What did they do to you, that you didn't know to react in any other way?"

"What could they have possibly done to me for me to react this way? 'React' by stabbing them 18 times? Are you serious?", Dean stared at him incredulously, "They didn't do anything to me. I've never even met them. And I didn't kill them." Dean pointed at each picture while he spoke "I didn't kill Hannah Grenman, I didn't kill Lily Fisher, I didn't kill Megan Jace, I didn't kill Brenda Rienson, I didn't kill Taylor Connor and I didn't kill Kali-what's-her-name."

"Kali Dooze", Amaro bristled with anger, "We saw you pull your knife out of her heart, you sick son of a bitch.