Well, dear, I can understand you trying to comfort a friend, but, by the law, you should report this murder. But, are you entirely sure that this is correct? If so, then go ahead and help your friend turn himself in or just go ahead a report the murder. Killing isn't right and should not be hidden; I know you guys are probably great friends but this is unnatural death and something should be done about it. When these things happen your friend never gets hurt but you. I don't know what else to tell you but go ahead and do what's right.