Alison J. Ramsdell U.S. Attorney | U.S. Attorney for the District of South Dakota
A Sioux Falls man has been sentenced to 15 years in federal prison after being convicted of producing child pornography. U.S. District Judge Karen E. Schreier handed down the sentence on September 8, 2025, according to United States Attorney Alison J. Ramsdell.
Amir Kalomo Mulamba, 29, will also serve five years of supervised release following his prison term and must pay a $100 special assessment to the Federal Crime Victims Fund. Upon his release, he is required to register as a sex offender.
Mulamba was indicted by a federal grand jury in November 2021 and pleaded guilty on June 16, 2025.
The conviction relates to events that occurred between May 30 and June 25, 2021. During this period, Mulamba used Snapchat to contact and coerce a 14-year-old girl living in Utah into engaging in sexually explicit conduct, recording it, and sending him the recordings and images. The coercion included persuading the minor to record herself performing acts with a foreign object. In exchange for these materials, Mulamba promised to buy her a cellular phone.
The investigation was conducted by Homeland Security Investigations and the Sioux Falls Police Department. Assistant U.S. Attorney Elizabeth A. Ebert-Webb prosecuted the case.
"This 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 the U.S. Attorneys’ Offices and the DOJ’s Child Exploitation and Obscenity Section, Project Safe Childhood marshals federal, state, and local resources to locate, apprehend, and prosecute individuals who exploit children, as well as identify and rescue victims. For more information about Project Safe Childhood, please visit https://www.justice.gov/psc."
Mulamba was immediately remanded into custody by the U.S. Marshals Service.
