An investigation that involved several U.S. federal agencies led to the bust of the darknet operators and seizure of $22 M in cryptocurrency.
Source: https://cointelegraph.com/news/us-fincen-awards-secret-service-for-seizing-22-m-in-crypto
US FinCEN Awards Secret Service For Seizing $22 M in Crypto
May 19, 2020
CoinTelegraph