Ohio man sentenced for stealing over 712 bitcoin subjected to forfeiture


Date: April 27, 2023

Contact: newsroom@ci.irs.gov

An Ohio man was sentenced today to 51 months in prison for stealing over 712 bitcoin that were the proceeds of the darknet bitcoin mixer Helix and subject to forfeiture in a then-pending criminal case.

The sentence was announced by U.S. Attorney Matthew M. Graves, Assistant Attorney General Kenneth A. Polite, Jr. of the Justice Department’s Criminal Division, IRS Special Agent in Charge Darrell J. Waldon of the IRS Criminal Investigation (IRS-CI), and FBI Special Agent in Charge Wayne A. Jacobs of the Washington Field Office’s Criminal Cyber Division.

In addition to the prison term, U.S. District Court Judge Beryl A. Howell ordered 36 months of supervised release and ordered a forfeiture money judgment of $4,881,532.40, and forfeiture of specific properties including cryptocurrencies that are now valued in excess of $20 million due to the increase in market prices.

According to court documents, Gary James Harmon, of Cleveland, Ohio, perpetrated a scheme to steal cryptocurrency that was the subject of pending criminal forfeiture proceedings in the case of Larry Dean Harmon, Gary Harmon’s brother. In February 2020, Larry Harmon was arrested for his operation of Helix, a darknet-based cryptocurrency money laundering service, known as a “mixer” or “tumbler.” Helix laundered over 350,000 bitcoin – valued at over $300 million at the time of the transactions – on behalf of customers, with the largest volume coming from Darknet markets. Law enforcement seized various assets, including a cryptocurrency storage device containing Larry Harmon’s illegal proceeds generated through the operation of Helix, which were subject to forfeiture in the criminal case. However, law enforcement was initially unable to recover bitcoin stored on the device due to the device’s additional security features. 

Knowing that the government was seeking to recover the bitcoin stored on the seized device for forfeiture in Larry Harmon’s criminal case, Gary Harmon used his brother’s credentials to recreate the bitcoin wallets stored on the device and covertly transfer more than 712 bitcoin, valued at approximately $4.8 million at the time, to his own wallets – stealing those funds and obstructing the pending criminal forfeiture proceeding. Gary Harmon further laundered the proceeds through two online bitcoin mixer services before using the laundered bitcoins to finance large purchases and other expenditures. 

Gary Harmon agreed to the forfeiture of cryptocurrencies and other properties derived from the fraudulently taken proceeds, including more than 647.41 bitcoin (BTC), 2.14 ethereum (ETH), and 17,404,400.64 dogecoin (DOGE). Due to the increase in market prices, the total value of these forfeitable properties exceeds $12 million. 

In August 2021, Larry Harmon pleaded guilty to money laundering conspiracy in connection with his case.

The IRS-CI District of Columbia Cyber Crime Unit and the FBI investigated the case.

Assistant U.S. Attorney Christopher B. Brown for the District of Columbia and Trial Attorney C. Alden Pelker of the Criminal Division’s Computer Crime and Intellectual Property Section (CCIPS), both now also members of the National Cryptocurrency Enforcement Team, prosecuted the case, with assistance from Paralegal Specialists Michon Tart, Angela De Falco, and Brian Rickers, and former Paralegal Specialist Chad Byron. Additional assistance was provided by Assistant U.S. Attorneys Segev Phillips and Daniel Riedl for the Northern District of Ohio and CCIPS Trial Attorney S. Riane Harper.