Well Jeremy said 20 years later that Neville phoned the police ten minutes beforehand.
The rifle was not powerful. Which is why Jeremy enquired about buying a 5 bore shot gun.
Have you got a source that Neville had to call Jeremy before ? I thought Sheila lived in London & Jeremy in Essex.
It seems like Jeremy was in place solving problems for Sheila and Colin. Once when she rammed her hand through a window and needed medical attention, once when she was not well and wanted to go home from a party. I´d be surprised if there weren´t other occasions.
Yes, Sheila lived in London. That didn´t prevent Freddie Emami from calling Nevill in Essex to come to his and Sheila´s aid when he feared for his life. Seems like that was the way the family operated.
How long would it take for Nevill to get from Essex to London - and how long would it take for Jeremy to get from Goldhanger to the WHF?
Your argument is weak.