ChainCatcher news, according to Cointelegraph, Helix founder Larry Harmon was arrested in 2020 for helping criminals launder money and has now been sentenced to three years in prison.U.S. District Judge Beryl Howell stated that the sentence was lenient given his assistance in the Bitcoin Fog mixer case.Larry Harmon operated the dark web Helix cryptocurrency mixer from 2014 to 2017, during which he laundered over 350,000 BTC. Helix collaborated with the Grams dark web search engine, which Larry Harmon also operated.