Not so difficult if the blood is dripping wet and you have access to a shower head with running water.
I ask you again Steve. In all reality if Jeremy is not some sort of psychopathic monster, how on earth do you believe he could be capable of such a heinous crime.
No history of violence before or since (apart from one angry reaction in prison many years ago). He was able to turn up to meet the police as cool as anyone else and according to you, to play a part.
Baring in mind he has been found to be free of any psychopathic tendencies, including covering up and hiding such tendencies and shows no sign of any personality disorder or mental illness, maybe you can explain how he managed to do this?