And here the detective found the detail that told me who Sebastian had really been.

Days before the crash, Sebastian had emailed copies of the financial records to his closest friend, a man named Diego, with a short note: hold onto these; if everything gets sorted next week, I’ll tell you to delete them.

He had found his brother committing a serious crime, and he had not gone straight to the authorities, but he had not looked away either.

He had given his brother a chance and protected the truth at the same time.