I don't believe that in the true circumstances of how an unarmed Sheila Caffell was originally shot downstairs in the kitchen by a cop gun, that cops could have justified shooting her, in view of the fact that just prior to them shooting her in the kitchen, Sheila had signalled to the police surrounding the farmhouse her intention to give herself up by showing the rifle at the first floor box room window, and then making her way downstairs to the kitchen to hand herself over to the police! She was affectively acting under a truce of white flag at the time cops shot her! The anshuzt rifle was still resting against the first floor box room window at the time cops pronounced her death downstairs in the kitchen, 7.35am, 7.37am and 7.38am! It stands to reason therefore that Sheila was not originally shot by use of the anshuzt rifle in the kitchen, when the rifle which supposedly inflicted both shots was resting against a first floor box room window upstairs!
Cops got their ballistic expert Fletcher to tamper with one of the two bullets used in Sheila's demise, so that it could be claimed that both bullets had been fired by the same anshuzt rifle! It didn't matter apparantly that the pathologist 'Peter' Veniz' had removed a piece of badly fragmented bullet bearing his exhibit reference PV/20, which by 20th September 1975 had mysteriously become transformed into a whole bullet, which enabled the police ballistic expert, Fletcher to conclude that both bullets (PV/20 and PV/19) had been fired from the anshuzt rifle, when the truth is only bullet PV/19 was!