Well as he hasn't described how closely he examined the bodies, only stating that he didn't touch any of them (or words to that effect), then I'm not sure how obvious it would have been.
Its clear enough, if you want to find out the truth, but if you don't want the truth to come out, you will find any excuse you can think up, and argue it means something else. Contact Ewen Smith and ask him what Craig had to say about it? I was not the only person to whom Ewen relayed what he found out after visits to see Dr Craig before he died...
By 8:44am, Sheila had only been shot once, if she had been shot twice by that stage, Dr Craig, and PC Miller, could not possubly have failed to notice two great big bullet entry wounds on Sheila's neck? Lets put things into perpsective, Craig and Miller View the body at 8:44am, and both report only seeing one bullet hole in Sheila's neck - yet, by 10am, along comes PC Bird, and he takes pictures of two whopping bullet holes on Sheila's neck, with fresh looking blood that is running, pouring and leaking from them, which does'nt add up; because PC Bird does"nt photograph the two wounds until 76 minutes after Craig and Miller only see one wound? Now, how could blood still be wet looking, and running, leaking and pouring, if Sheila has already been dead a further 76 minutes?