Hi Susan and Sparkle. It's easier for me because I've actually followed this pretty well from when the horrendous " crime " took place.
As Susan knows,,,I'm of the strong belief that Jeremy is innocent as besides there being nothing to incriminate him,,it's his poor sister who had the " motive " more than anyone else.
The girl was sick,with big psychological problems and back in the late 70's early 80's her illness wasn't recognised as it is today.
I fully understood Sheila's illness having worked in an " asylum " as it was known in the 50's and for patients such as Sheila,they used to be " knocked out " via an injection known as Paraldehyde,a noxious and distressingly instant " hit " to those who proved to be beyond assistance during a psychotic bout.
During the 80's,medication had moved on,but knowledge of schizophrenic behaviour was still in its early days and was very misunderstood,so therefore it was always hit and miss as regards the treatment and the actual understanding of the patient.
Dr Ferguson who was treating Sheila " didn't think " that Sheila was suicidal. A lot of schizophrenics are suicidal and even today,,their lives aren't as long as those who aren't mentally disturbed.
I would have stated immediately that it had been Sheila because of past experiences with people like her. I'd also like to add about their strength, capabilities and deviousness. They are quite lucid one minute and the next,they can kill you if you're not careful . While working at a hospital/asylum, I nearly discovered how dangerous a young 18 year old could be,,,when I was making her bed one morning. She picked me up like a rag doll and threw me onto the iron frame of the bed. I was winded and bruised,,but made sure she was out of her room the next time. Unpredictable,is the operative word for all schizophrenics.
So there you are. I would leave Jeremy out of the equation altogether because it's not about him murdering anyone. It was about his very ill sister.