SIOUX FALLS – United States Attorney Ron Parsons announced today that U.S. District Judge Karen E. Schreier sentenced a Sioux Falls, South Dakota, man convicted of Possession of a Firearm by a Prohibited Person. The sentencing took place on September 21, 2026.
Jackson Wayne Sully, 37, was sentenced to three years and eight months in federal prison, followed by three years of supervised release, and ordered to pay a $100 special assessment to the Federal Crime Victims Fund.
Sully was indicted by a federal grand jury in March 2026. He pleaded guilty on June 22, 2026.
According to court documents, on November 6, 2025, Violent Crime Unit Detectives with the Sioux Falls Police Department assisted members of the Minnehaha County Sheriff’s Office Civil Division with a lockout eviction at Sully’s residence. While clearing the apartment, law enforcement observed items containing methamphetamine, residue, and paraphernalia. Sully’s recent drug use prohibited him from possessing a firearm.
During the execution of a search warrant, law enforcement located a loaded black Springfield XD 9mm handgun. This handgun was found in Sully’s bedroom, and his DNA was present on the firearm. As a result of prior felony convictions, Sully was likewise prohibited from possessing any firearms.
This case is part of Operation Take Back America, a nationwide initiative that marshals the full resources of the Department of Justice to repel the invasion of illegal immigration, achieve the total elimination of cartels and transnational criminal organizations (TCOs), and protect our communities from the perpetrators of violent crime. Operation Take Back America streamlines efforts and resources from the Department’s Organized Crime Drug Enforcement Task Forces (OCDETFs) and Project Safe Neighborhood (PSN). Through PSN, the District of South Dakota seeks to bring together all levels of law enforcement and the communities they serve to reduce gun violence and make our neighborhoods safer for everyone.
This case was investigated by the Bureau of Alcohol, Tobacco, Firearms and Explosives, the Sioux Falls Police Department, and the Minnehaha County Sheriff’s Department. Assistant U.S. Attorney Jeremy R. Jehangiri prosecuted the case.
Sully was immediately remanded to the custody of the U.S. Marshals Service.
Source: U.S. Attorney’s Office — South Dakota — U.S. Department of Justice press release.