I can't find anything pertaining to the fact that Jeremy had groused about his mother leaving her money,or any money to the church.
I did read a crime-writer's view on religious backgrounds playing a part in murders though. As once upon a time there were over 300 murders committed in a square mile walk in London.
Recent studies showed that,quote " people of faith " are more likely to be murderers than atheists,unquote,Sept. 2017.