William 'Bill' Hill, co-founder of Bitcoin mixer Samourai Wallet, has been sentenced to four years in prison for operating an unlicensed money transmitting business. Hill, 67, and developer Keonne Rodriguez admitted to using the privacy tool to launder at least $237 million in criminal proceeds. The sentencing by Judge Denise Cote in the Southern District of New York considered Hill's recent autism diagnosis and age, reducing the sentence from the potential 60-month maximum. Hill expressed remorse for his actions, acknowledging the impact on his family and accepting full responsibility. His lawyer argued that Hill's autism affected his understanding of the project's legality.