One needs to separate that there has been a murder with the perception there has been a murder. The article mentions the possibility there has been no murder u

One needs to separate that there has been a murder with the perception there has been a murder. The article mentions the possibility there has been no murder until someone enters the room and discovers/postulates there has been a murder. What if no one ever enters, but no one ever leaves. Do we know the room is, in fact, not non empty, or is the room None?