With legal costs for his defense mounting, Roman Storm, the Ethereum developer behind Tornado Cash, has put out another call for help.
“If you believe in open-source, privacy, and standing up to injustice,” he said in a post on X.
The latest call for financial aid comes after Storm already raised around $3 million from supporters, including Vitalik Buterin and the Ethereum Foundation.
“We’re running out of time — legal costs are piling up fast, and we urgently need your help,” he said in his latest post.
Storm has been on trial in the Southern District of New York since July 14. Although prosecutors dropped the charge of operating an unlicensed money transfer business, he still faces charges of conspiracy to commit money laundering and conspiracy to violate U.S. sanctions.
For his defense, Storm has appointed Brian Klein and Keri Curtis Axel of Waymaker LLP, a firm that has previously represented high‑profile crypto clients, including those involved with Mango Markets and Kraken.
David Patton of Hecker Fink LLP is also part of the team—a seasoned federal trial attorney who has represented major crypto figures, including Terraform Labs co‑founder Do Kwon.
In the first eight days of Storm’s trial, the government presented its case that Tornado Cash is a criminal tool used by fraudsters and hackers to launder crypto.
Prosecutors not only sought to tie Tornado Cash to illicit payments. They also attempted to depict Storm and his collaborators, Roman Semenov and Alexey Pertsev, as complicit in those crimes due to the way they managed and profited from the platform.
In contrast, Storm’s attorneys argue that Tornado Cash is first and foremost a privacy tool with many legitimate users.
As their first witness, they called Preston Van Loon to the stand. The Ethereum developer, who successfully sued the government for sanctioning Tornado Cash, forcing the Treasury Department to lift sanctions, said he used the protocol for “operational security and personal safety.”
The core argument by the U.S. government is that Storm knowingly aided money laundering by developing and deploying Tornado Cash.
If the jury convicts him, it could set a precedent that publishing open-source code can incur criminal liability if it is later used for a crime, even without any direct involvement.
In her opening statement, Axel drew an analogy with a hammer, arguing that it would be ridiculous to charge the manufacturer just because the tool was used in a burglary.
However, there is precedent for convicting developers who built platforms that facilitated crime.
For instance, the case of Silk Road mastermind Ross Ulbright invites comparison.
Ulbright’s trial also tested the extent to which creators of digital tools and platforms can be held responsible for illegal activity committed by users.
In Ulbricht’s case, prosecutors successfully argued that he maintained enough control over Silk Road to warrant criminal liability.
The case against Storm also rests on the question of control.
While the defense argues that the decentralized, open-source nature of Tornado Cash means no single actor can be held responsible for its operation, the government emphasized Storm’s continued maintenance of the user interface and his acceptance of donations.
At stake, Storm’s supporters argue, is the legal treatment of open-source code more generally. The trial may effectively determine whether publishing software in a decentralized and open manner shields developers from liability, or if the courts will treat certain open-source projects as financial entities.