On April 24, Eastern Daylight Time, the U.S. Department of Justice announced the arrest of active-duty Army Special Forces Sergeant Gannon Ken Van Dyke.

The indictment published by the Justice Department on the same day indicated that Van Dyke participated in the operation that captured Venezuelan President Nicolás Maduro from the presidential palace in Caracas on January 3 of this year.

According to reports, Van Dyke bet on the prediction market the night before, wagering that Maduro would be captured, earning over $400,000. Although the reports did not disclose specific account details, based on the mentioned betting direction and the profit amount, we traced it to account 0x31a5.

This is one of the five insider accounts specifically labeled by PolyBeats in consecutive reports on January 4 and January 7.

Van Dyke Account Review

Let’s rewind to January 4 of this year.

After the event of Maduro’s capture, PolyBeats immediately analyzed the on-chain data, identifying five accounts and completing a public report within 24 hours of the operation. For details, see “They Missed $2 Million Because Maduro Wasn’t Supposed to Be Home for the New Year”

Among them, Van Dyke's account was the most profitable of the five. The account was registered on December 26, 2025, and subsequently made a series of bets related to "Maduro stepping down," "U.S. military entering Venezuela," and other operations highly relevant to the capture, with a total principal of about $30,000 and total profits exceeding $400,000.

On the day of the operation, this account withdrew most of its funds and then transferred them to an overseas cryptocurrency account, which were later deposited into a newly opened brokerage account.

On January 6, three days after the operation, media began reporting on unusual trades related to this operation on Polymarket. On the same day, the account requested Polymarket to delete its account, citing "unable to access the registered email." Meanwhile, it changed the registration email of the cryptocurrency exchange to an anonymous email that had been secretly created as early as December 14.

New account, precise positioning, withdrawal on the day of the incident, destruction of traces afterward—this entire process is exactly the abnormal characteristics we emphasized in January's review.

Today, the Justice Department has given this address a name: Gannon Ken Van Dyke.

The Story Involves More than One Person

Van Dyke's arrest is the first case of insider trading in Polymarket history to be formally prosecuted by the DOJ. But this story has never involved just him alone.

In two reports from January, PolyBeats identified a total of five accounts. Apart from Van Dyke, the other four have not yet received any official investigation information:

0xa72db1749e9ac2379d49a3c12708325ed17febd4, profit $74,982;

0x6baf05d193692bb208d616709e27442c910a94c5, profit $145,619;

0x168b100d7a6620a2f49a455344c2c006eaf1714b, profit approximately $34,000;

0x168b100d7a6620a2f49a455344c2c006eaf1714b, profit approximately $54,000.

Why have these four accounts not yet been apprehended?

The most direct reason is the amount. Van Dyke's profit of nearly $410,000 is the highest among the four accounts, making law enforcement priorities more clear.

More critically, there is the matter of identity. Van Dyke is an active-duty soldier who has signed a confidentiality agreement and directly participated in the operation planning, with a very short path for identity verification. The true identities and information sources of the other four accounts remain unclear, and if they acquired secondary information, the legal boundaries become much more blurred, making prosecution significantly more challenging.

Another layer is Polymarket's own boundaries for reporting. The platform claims that they actively discovered and reported Van Dyke to law enforcement, but the other four accounts, which are also suspicious, clearly were not reported together. The platform has provided no explanation regarding this.

However, one thing is changing this situation.

In March of this year, Polymarket announced reinforced market integrity rules, explicitly prohibiting three types of behavior: trading based on legally required confidential information, trading based on others' insider information, and participation by individuals with influence over the event outcome in related markets. Along with the implementation of these rules, this indictment from the DOJ sends the same signal to everyone: the platform is willing to cooperate with investigations, blockchain records will not disappear, and investigations themselves can last for months.

Van Dyke was apprehended nearly four months after he placed his bets. For the other four accounts, as well as for everyone with an information advantage attempting insider trading in prediction markets, this arrest may just be the beginning.

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