*slap upside the head*
Notify the authorities, you moron!
https://tips.fbi.gov/
Jesus. Am I the only person on here with common sense? This is what the FBI is there for!
If you want to redeem yourself and be able to sleep at night, report it and let the feds track down the guys that did it and bring them to justice. Then your conscience will be clear. Make sure you include the URL and the date you accessed it in the report.