Hi Susan. At the very beginning I looked at the aspect of a " copy-cat " type murder where it could have been possible that Jeremy had emulated Sheila's illness,but it didn't work for me with so many other things involved. There was more to it than just sitting back with those thoughts and saying to yourself well that's that,that's how he did it.
Jeremy would have known,probably,that's what people would have thought. He was intelligent enough to have worked that one out.
Intelligent,though he was/is, his attitude got him locked up. It was arrogant and cavalier towards the law,and police don't like that. I don't much care for it myself and can understand why the police must have been riled,as I probably would have been.

My own brother was an arrogant sod,always so cock-sure of himself,but he got on in life all the same. I could have choked him for it many a time

This is why I don't see Jeremy as a killer,because of the attitude he displayed. I remember years ago during a personality exam I was doing,I failed on one slide which was shown during the exam. It showed two people sitting at a meeting. One was sitting upright and looked attentive,the other slouched in his chair. I was asked who the confident one was.I answered the former------------wrong ! I tried to argue the toss but it was no good until I realised that the tutor was right. The one slouched,showing a bored expression was the confident one. Which years later I only came to realise.