I found it but it gives me error 404 (the link is supposed to be working). If someone here knows chinese and can figure it out please reupload this to another file host
???????????????Book of Murder OST/??? ??_??????_???? (
http://tieba.baidu.com/p/3617277873)
From what I gather from google translate, the chinese asshole who uploaded this made it very hard for non-chinese to do get it, If not impossible. It involves some android application and shit and transferring the file to your own baidu storage so then you can get it? And yes, that last sentence is a question since I'm just baffled.