The weapon was also examined for fingerprints. A print from the appellant's right forefinger was found on the breech end of the barrel, above the stock and pointing across the gun and Sheila Caffell's right ring fingerprint was found on the right side of the butt, pointing downwards. There were three further finger marks on the rifle, each of insufficient detail for identification purposes.
Which means she had to have touched the thick end of the handle on the gun. But, nothing has been mentioned about this...her finger pointing towards the barrel of the gun. 
Yet the Defence's case is that she killed four people with it,including a struggle with Nevill where a ceiling light got broken,necessitating even the Jeremy supporters' grudging acceptance surely that at that stage Sheila is holding the rifle with two hands.
Here is Jeremy back at the farm,under suffrance after bumming around Australia and New Zealand until the money runs out,then taking employment at Little Chef off the A10 rather than get stuck into farm work. Maybe Jeremy airs his grievances with June at the unfair treatment between himself and Sheila who has been bought a flat in a fashionable area of London and is receiving assistance through June's Osea Road dividend.
So June lets Jeremy have Bourtree Cottage rent free:not what Jeremy had in mind exactly but at least he has a degree of independence and can entertain whomever he likes there without his parents involvement-until that is June catches Julie there one day and calls her a "harlot" to her face. An offer of a flat in London is turned down by Julie who is besotted by Jeremy and sticks by him at this stage.
Jeremy is back working on the farm and is paid well for his age,but with his lavish tastes whilst dining out and other sundry expenditure on the cottage he finds his wage is inadequate,which is why he resorts to earning money on the side by drug dealing. He becomes more and more resentful that he is expected to work for a living and is stuck in an Essex backwater whilst he regards Sheila as living it up in London.
Jeremy's resentment comes out in the odd remark to friends-the James Richards comment said with vehemence on several occasions:"I f***ing hate my parents" and to Doris, the wife of farmworker Len Foalkes to whom he remarks:"I'm not sharing anything with Sheila". If this is not an indication that he has seen the provisions of his mother's will whereby this is exactly what he would be doing then I don't know what is.
Of course Jeremy is still the major beneficiary of Nevill's will,as long as he farms to the satisfaction of the trustees upon Nevill's death,and this is the reason why Jeremy has settled down to farming
because it would be the last year of Nevill's life,after which Jeremy would no longer be tied to the farm and he could do what he pleased,inheriting the lion's share of both his parents' wills in the process.
