He must have made his dad and himself a cup of tea before killing him-----------2 cups on,or near the Aga.
To my knowledge,there was never any boasting done about his conquests after the event. Isn't this another trait of psychopaths ? I imagine all psychopaths are different in their tactics. So you wouldn't know who was one and who wasn't.
Jeremy hasn't " lost it " in prison either. He's continued to keep his cool. He couldn't have faced this long locked up if he'd been guilty. Not once has he been on suicide watch ( sign of guilt ) He's shown determination to prove his innocence which he has to be admired for.
No planning was done for these murders.It was done on the spur of the moment and carried out in a frenzied and mad fashion. It HAD to be someone who was clinically INSANE.