SEATTLE - A Homeland Security Investigations Seattle-led, multinational investigation has led to a 10-year federal prison sentence for an Albany, Oregon, man who possessed child sexual abuse material.

Matthew Lynn Windom, 55, was sentenced to 120 months in federal prison and a life term of supervised release. He was still on state probation for a 2014 conviction for child sexual abuse at the time of his sentencing.

"Children are among our most precious and vulnerable members of society," said acting Homeland Security Investigations Seattle Special Agent in Charge April Miller. "We hope this sentence makes clear that the possession of child sexual abuse material - or any form of child exploitation - will be met with serious consequences. HSI remains committed to relentlessly investigating and pursuing those who commit these crimes."

HSI investigated the case, which originated from a lead generated by Australia's New South Wales Police Force and the New Zealand Department of Internal Affairs.

Windom potentially possessed and shared child sexual abuse material on a New Zealand-based platform called "Mega." Investigators first obtained and executed a search warrant on Windom's home, where they found digital devices and stories about child sex abuse and a duffel bag with children's underwear.

The Albany Police Department supported HSI's execution of the federal search warrant.

No child sexual abuse material was found on the seized devices, but investigators later executed a search warrant on one of Windom's email accounts. He was found to be in possession of child sexual abuse material and was arrested pursuant to a federal complaint on Jan. 8, 2025.

On Feb. 20, 2025, a federal grand jury in Eugene, Oregon, returned an indictment charging Windom with possession of child pornography. He pleaded guilty March 10, 2026.

"The successful identification of this repeat offender demonstrates the power of international partnerships in combatting crimes against children," said U.S. Attorney Scott E. Bradford. "My office will continue to work tirelessly with our local, state, federal and international partners to identify, locate and prosecute those who exploit our most vulnerable population and ensure justice for every child."

Anyone who has information about the physical or online exploitation of children is encouraged to contact HSI at 866-347-2423 or submit a tip online at report.cybertip.org.

Federal law defines child sexual abuse material as any visual depiction of sexually explicit conduct involving a minor. It is important to remember child sexual abuse material depicts actual crimes being committed against children. Not only do these images and videos document the victims' exploitation and abuse, but when shared across the internet, they revictimize and retraumatize the children each time their abuse is viewed. To learn more, please visit the National Center for Missing & Exploited Children at https://www.MissingKids.org.

Learn more about this case here.