St. Petersburg Sexual Offender Sentenced to 11 Years for Attempted Coercion and Enticement of a Minor

Tampa, Florida - Nathaniel McAlpine (48, St. Petersburg) has been sentenced by U.S. District Judge Brian Miller to 11 years in federal prison for attempted coercion and enticement of a minor to engage in sexual activity. McAlpine was found guilty by a jury on September 24, 2025. U.S. Attorney Gregory W. Kehoe made the announcement.

According to court documents, McAlpine, while on supervised release for possession of child pornography, engaged in conversations with the purported mother of a child wherein he coerced, encouraged and persuaded the purported mother to engage in sexual activity with her child. Through investigation, agents determined the purported mother to actually be an online scammer.

This case was investigated by Homeland Security Investigations. It was prosecuted by Assistant United States Attorney Courtney Derry.

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. Led by United States Attorneys' Offices and the Criminal Division's Child Exploitation and Obscenity Section (CEOS), Project Safe Childhood marshals federal, state, and local resources to locate, apprehend, and prosecute individuals who sexually exploit children, and to identify and rescue victims. For more information about Project Safe Childhood, please visit www.justice.gov/psc.