Twisted Justice?
Not quite sure how I feel about this one
Michael Richo - who was arrested in Oct 2016 has confessed to stealing $365,000 worth of BTC from various darknet marketplaces using phishing sites.
The FBI stated that the phishing sites he created were very professional and undetectable even to those aware of phishing.
Having confessed, Michael could face upto 30yrs in prison. Many would argue that by stealing from darknet marketplaces, he has played a part in reducing some some illegal activities. However, his act in itself was also illegal.