Thanks! Great read. But there seems to be nothing at all to suggest that he was hiding a dark secret. The sisters confession did not preempt an investigation that might have implicated him. In fact the scant physical evidence and conclusion of the detective is consistent with her guilt.
Still… a fascinating life story
I use runnerup from Fdroid. It can auto upload to runningahead.com ( which is on not foss but a passion project) which I like for getting weekly summaries and as a backup.