A U.S. Special Forces soldier who participated in the raid to capture Venezuelan President Nicolás Maduro pleaded not guilty April 28 to insider trading charges alleging that he placed bets on the covert operation, federal court papers say.

who participated in the raid to capture Venezuelan President Nicolás Maduro and now stands accused of placing bets on the operation, pleaded not guilty to insider trading charges on Tuesday, court filings show.

Gannon Van Dyke, a Master Sergeant stationed at Fort Bragg in Fayetteville, North Carolina, was charged on multiple counts in connection with placing a series of bets on the raid that netted the longtime U.S. soldier some $400,000, the Justice Department announced April 23. The 38-year-old on April 28 entered a plea of not guilty in the Southern District of New York, federal court filings show.

Van Dyke’s legal team on Tuesday indicated they planned to challenge the validity of the indictment.

"Mr. Van Dyke is an American hero, somebody who is charged unfortunately with something that is not a crime," Van Dyke’s attorney Mark Geragos told reporters after the hearing.