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Justice News

Department of Justice
U.S. Attorney’s Office
District of Montana

Friday, July 19, 2013

Thomas Mark Marceau Pleads Guilty In U.S. Federal Court

The United States Attorney's Office announced that during a federal court session in Great Falls, on July 17, 2013, before U.S. Magistrate Judge Keith Strong, THOMAS MARK MARCEAU, a 28-year-old resident of Browning and an enrolled member of the Blackfeet Tribe, pled guilty to (2) charges of abusive sexual contact. Sentencing has been set for October 22, 2013. He is currently detained.

In an Offer of Proof filed by Assistant U.S. Attorney Ryan G. Weldon, the government stated it would have proved at trial the following:

X.X. disclosed to an FBI agent that MARCEAU had molested him. The assault occurred sometime between the years of 2007 through 2009, and X.X. was less than

Blackfeet Indian Reservation. MARCEAU was in his early twenties.

When interviewed about the sexual assault of X.X., MARCEAU stated that he was close with X.X. When asked about the inappropriate contact that he had with X.X., MARCEAU acknowledged that such sexual contact occurred. Y.Y. was 11-years-old when he disclosed to law enforcement that MARCEAU had molested him. The molestations perpetrated against Y.Y. occurred between 2007 and 2012, and Y.Y. was under 12 years of age during that time. As with X.X., MARCEAU was in his twenties when the molestations against Y.Y. occurred. Y.Y. explained that MARCEAU had been molesting him since Y.Y. was 6-years-old.

Agents also interviewed MARCEAU about sexual contact with Y.Y. MARCEAU admitted that the sexual contact occurred.

MARCEAU faces possible penalties of life in prison, a $250,000 fine and lifetime supervision.

The investigation was a cooperative effort between the Federal Bureau of Investigation and the Bureau of Indian Affairs.

Updated January 14, 2015