I wouldn't expect there to be documented cases yet. The hypothetical case in question is a hacker taking hundreds of millions of dollars, not being caught initially, but then being caught years later. Crypto as a whole is just 15 years old, and it's only really been hot for under a decade. There have only been a handful of cases with such large dollar amounts, and most occurred in the last 5 years. And I expect most of the people who pull this off will be properly paranoid.