Can someone help me find out what was the soundtrack on one of the episodes?

Hi.
I gotta admit, I don't usually watch Being Human, but yesterday I did, and the episode I saw had an amazing soundtrack which I totally loved. It's the episode in season one when Mitchell kills the vampire - Whose name I can't recall at this moment, something starting with an L, I think - because she told him to do it. It's the girl he himself turned into a vampire. It's the same episode when Annie descides to haunt her killer, whose name I've also forgotten.

The soundtrack is when Mitchell kills the vampire. It's kinda a sad, instrumental soundtrack. Does anybody know a way I can find out what song it is? Or, even bether, does anyone just happen to know it? I know it's a long shot, I just though it wouldn't hurt to check.
Thanks anyway.