Clinton J. Johnson U.S. Attorney | U.S. Attorney for the Northern District of Oklahoma
The U.S. District Court in Tulsa, Oklahoma, has sentenced Marco Dionte Atkins and his mother, Sidney Brook Mayfield, following their conviction in September. U.S. District Judge Sara E. Hill presided over the case.
U.S. Attorney Clint Johnson commented on the sentencing: "Atkins acted recklessly and violently when he shot at someone outside of an occupied business, where children were present." He added that both Atkins and Mayfield attempted to evade accountability by campaigning against witnesses after their arrest.
The incident occurred in November 2023 when Mayfield drove into a convenience store across from a high school with five teenagers, including her son Marco Atkins. Surveillance footage captured an altercation between the group and the victim inside the store. After leaving the store, Atkins fired multiple rounds from inside a vehicle at the victim, hitting him in the stomach before Mayfield drove away.
Following Atkins' arrest in January 2024, both he and his mother engaged in witness tampering and obstruction of justice. Their actions led to delays in Atkins' trial initially set for June 2024. Evidence presented during the trial included social media posts by Mayfield threatening witnesses.
Atkins received a sentence of 180 months imprisonment followed by five years of supervised release for charges including Assault with a Dangerous Weapon with Intent to do Bodily Harm in Indian Country and Using a Firearm During a Crime of Violence.
Mayfield was sentenced to 70 months imprisonment followed by three years of supervised release for Retaliating Against a Witness and Corruptly Tampering with a Witness among other charges.
Both individuals were also found guilty of Conspiracy to Tamper with a Witness through Corrupt Persuasion and Obstructing Justice. They are citizens of the Muscogee (Creek) Nation and will remain in custody until transferred to federal prison facilities.
The investigation was conducted by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) along with Tulsa Police Department officers. The prosecution team included Assistant U.S. Attorneys John W. Dowdell and Kenneth Elmore.
This case is part of Project Safe Neighborhoods (PSN), aimed at reducing violent crime through collaboration between law enforcement agencies and communities they serve.
