Duluth Climbing Coach Sentenced to Over Six Years in Prison for Possession of Child Pornography

DULUTH, Minn. – Lucas Matthew Kramer, a Duluth man, was sentenced to 78 months in prison followed by five years of supervised release for possessing child pornography, announced Acting U.S. Attorney Lisa D. Kirkpatrick. He also was ordered to pay restitution to his victims and a $7,500 assessment pursuant to the Amy, Vicky, and Andy Child Pornography Assistance Act of 2018. 

“Few crimes are as heinous as the sexual exploitation of minors,” said Acting U.S. Attorney Kirkpatrick. “My office will continue to prioritize charging predators who hold positions of trust in our community.  Coaches, daycare providers, and others in positions of trust who prey on children will face federal justice.”  

“The sentencing of Lucas Mathew Kramer concludes a successful investigation focused on those who seek to exploit our children. HSI will continue to pursue and bring to justice those who target our young people,” said ICE HSI Saint Paul Special Agent in Charge Jamie Holt. “We appreciate the collaboration with our law enforcement partners and stand by our commitment to protecting our communities and securing our homeland.”

According to court documents, on September 23, 2022, law enforcement received a tip that an online individual with the username “northernboy35” had used the Kik messenger application to upload 19 videos of child pornography to the internet. Less than a week later, the same username uploaded five additional child pornography videos to the internet. Law enforcement quickly determined that the uploaded files originated from Duluth, Minnesota, and linked the email and IP address for the “nothernboy35” moniker directly to Lucas Mathew Kramer, 45, a longtime collegiate climbing coach. 

Law enforcement proceeded to execute a search warrant at Kramer’s residence and discovered that he had knowingly possessed over 600 images and videos of child sexual abuse material (CSAM) on numerous electronic devices. His CSAM collection included the graphic sexual abuse of prepubescent children—some as young as toddlers—and included videos depicting children being physically forced into sexual compliance. Kramer admitted that he downloaded and traded his CSAM collection with others on the internet. Law enforcement also discovered evidence of sexually explicit chats between Kramer and self-identified prepubescent minors, where he engaged the self-identified minors in sexually explicit conversations and encouraged them to take and send nude images of themselves.    

Kramer pleaded guilty to one count of possession of child pornography on October 11, 2024. He was sentenced in U.S. District Court by Judge Eric C. Tostrud on March 19, 2024. When handing down the sentence, Judge Tostrud remarked that Kramer’s conduct was “deeply troubling” and that his collection of CSAM materials “reflected depravity” and showed a “callous indifference” to the humanity of his victims.

This case is the result of an investigation conducted by Homeland Security Investigations and the Duluth Police Department. “The Duluth Police Department appreciates its partnership with Homeland Security Investigations in holding this offender accountable to the highest standards,” commented Duluth Police Chief Mike Ceynowa.

The case was brought as part of Project Safe Childhood, a nationwide initiative to combat the growing epidemic of child sexual exploitation and abuse launched in May 2006 by the Department of Justice. Led by U.S. Attorney’s Offices and the Child Exploitation and Obscenity Section (CEOS), Project Safe Childhood marshals federal, state, and local resources to better locate, apprehend and prosecute individuals who exploit children via the internet, as well as to identify and rescue victims. For more information about Project Safe Childhood, please visit www.justice.gov/psc.

Assistant U.S. Attorney Jordan L. Sing prosecuted the case.