I suppose a lot can happen in three minutes! (8.10am - 8.13am)...
A dead female downstairs in the kitchen in addition to the body of Neville Bamber, from 7.35am, onward (Gibbons), 7.37am (occupants of CA07), 7.38am (occupants of CA07), and only three bodies upstairs by 8.10am (occupants of CA07) is sufficient testimony to the truth in this matter to prove that Jeremy Bamber did not shoot dead his sister!
How was this possible after 8.10am?
somehow, in a three minute period (8.10am to 8.13am) Jeremy Bamber sneaked into the farmhouse, obtained the anshuzt rifle from the first floor box room window, and shot his sister dead with use of it in the main bedroom without any cop outside the farmhouse or inside the farmhouse seeing him doing it!
He supposedly removed the silencer from the end of the guns barrel after he shot and killed Sheila, and somehow managed to take it and conceal it inside a cupboard in the downstairs office, and then somehow get back outside into the front passenger seat of PS Saxbys patrol car in time for PS Bews to come and tell him (8.13am) acting upon 'Terry' Gibbons instruction to inform Jeremy that all his family had been found dead inside the farmhouse!
What...
Are you kidding!