So let's suppose that SOMEHOW he got a hand gun. HOW was he going to explain that Sheila knew how to use if. This was never about Jeremy. It had to be made to look as if Sheila had done it. WHY would Sheila, who apparently wouldn't let her boys play with toy guns, bring a REAL one to WHF?
What difference would anything have made ? As things stood, the shooting of Sheila was made to look like suicide,but it didn't work and wouldn't have worked whatever weapon had been used. Jeremy was the target and that's where the fixation ended.
I wonder if the toy gun was fingerprinted ? I've always wondered, seeing as it was a forbidden toy.