Yup, seems like Ohtani actually was the victim here.
This is pulled from the official investigation documents:
Between November 2021 and January 2024, more than $16,000,000 was transferred via wire from a checking account belonging to Victim A, a professional baseball player, with an account number ending x5848 (the “x5848 Account”), held at a domestic financial institution (“Bank A”).1 These funds were transferred to bank accounts of associates of an operator of an illegal sports book (“BOOKMAKER 1”)
Recorded phone calls produced by Bank A related to the x5848 Account show MIZUHARA falsely identifying himself as Victim A, and attempting to trick and deceive Bank A employees into authorizing wire transfers from the x5848 Account to associates of BOOKMAKER 1.
Bank A records show that MIZUHARA accessed the x5848 Account pretending to be Victim A and transferred funds to associates of BOOKMAKER 1. In particular, on June 20, 2023, MIZUHARA accessed the x5848 Account from the Central District of California pretending to be Victim A and wire transferred $500,000 to an associate of BOOKMAKER 1.
Finally, on March 20, 2024, MIZUHARA sent BOOKMAKER 1 an encrypted text message admitting that he (MIZUHARA) had stolen funds from Victim A.
Pretty wild.