I can't believe how fast y'all found the fic I was looking for last week. Let's try the vid.

It was an evil!sam, or maybe serialkiller!sam vid, and it also featured a male character from another fandom. Since I basically live under a rock and have no earthly idea who anyone is if they are not on SPN, I can only guess....it might have been Christian Kane, or someone from Buffy or Vampire Diaries. The key thing is that it was set to The Stones "Paint it Black".

Any ideas? I've searched on Youtube, but only get a few hits for Paint it Black, and although one of them is evil!sam, it's not the right one, it doesn't have that other guy in it.

?Jen?