The Truscott case.....What did Sir Bernard Spilsbury think?

Question

This boy was convicted of murdering a girl acquaintance in Ontario 1959. Investigation was poor and many witness(kids) seemed to change their stories when cross examined later at the trial. Still and all he was convicted. There was an outcry and a review was undertaken. I think Spilsbury was called in then and I think he saw 3 things that seemed to incriminate the boy. One of which was a letter asking for parole saying 'he would not break the law again' or something to that effect.
I have been unable to confirm this letter and nobody but me seems to remember it.

Answer 1

I, also, have not been able to confirm it.