Well, he did allegedly help to launder up to 25M$ through his Bitcoin ATM network. Apparently, an undercover agent managed to purchase 14,500$ at a given ATM during September 2018, failing the ATM owner to file the necessary reports for the sums. If that was not enough, he also transacted similar amounts with some other undercover agents in person (allegedly workers from a "karaoke bar" that went the extra mile for their customers), also failing to file the necessary reports. Twice shy ...

https://www.justice.gov/usao-cdca/pr/oc-man-admits-operating-unlicensed-atm-network-laundered-millions-dollars-bitcoin-and