In memory of my bestfriend I want to do something special on xmas eve...?

As I am Korean (I tell people I am Japanese though) I suggest you would better not to do anything as he may not die though I understand you "wish" he would have died. Are you just leaving him because you sold your friend for your money or visa status or somethin? If you say you are not nutso with drugs I suggest you better say sorry to him thats all.