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Press Release

Former Eugene Elementary School Teacher Sentenced to Federal Prison for Sexually Abusing 15-Year-Old

For Immediate Release
U.S. Attorney's Office, District of Oregon

EUGENE, Ore.—A former Eugene elementary school teacher was sentenced to federal prison today for sexually abusing a minor female, announced Acting U.S. Attorney Scott Erik Asphaug.

William Hamann, 38, was sentenced to 156 months in federal prison and ten years supervised release. Hamman was also ordered to pay restitution to his victim.

According to court documents, on several occasions beginning in 2018 and continuing until July 2019, Hamann paid a minor female for oral sex and recorded the minor performing the sex acts. The minor female was 15 years old during the first encounter with Hamman. Eugene Police Department detectives and FBI agents arrested Hamann on July 26, 2019, when he came to meet the minor a fourth time. Agents searched his mobile phone and found a recording of one of the sex acts. Hamman used social media to arrange the meetings with the minor.

A search of Hamman’s residence and digital devices revealed that he had previously approached several other females online who said they were minors. Investigators uncovered evidence that Hamman had engaged in sexually explicit conversations with them even after they said they were underage.

On August 21, 2019, a federal grand jury in Eugene returned a four-count indictment charging Hamann with sexual exploitation and trafficking of a child, possession of child pornography, and attempted sex trafficking of a child. On January 19, 2021, he pleaded guilty to sex trafficking of a child.

This case was investigated by the FBI and the Eugene Police Department. It was prosecuted by Jeff Sweet, Assistant U.S. Attorney for the District of Oregon, and Katherine Green, Lane County Deputy District Attorney.

Anyone who has information about the physical or online exploitation of children are encouraged to call the FBI at (503) 224-4181 or submit a tip online at

Federal law defines child pornography 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 victims’ exploitation and abuse, but when shared across the internet, child victims suffer re-victimization each time the image of their abuse is viewed. To learn more, please visit the National Center for Missing & Exploited Children’s website at

This case was brought as part of Project Safe Childhood, a nationwide initiative launched in May 2006 by the Department of Justice to combat the growing epidemic of child sexual exploitation and abuse. For more information about Project Safe Childhood, please visit

Updated March 1, 2021

Project Safe Childhood