United States Attorney's Office for the Northern District of Oklahoma

01/29/2025 | Press release | Distributed by Public on 01/29/2025 14:01

Son and Mom Sentenced for Their Role in Shooting a Victim and Conspiring to Tamper with Witnesses

Press Release

Son and Mom Sentenced for Their Role in Shooting a Victim and Conspiring to Tamper with Witnesses

Wednesday, January 29, 2025
For Immediate Release
U.S. Attorney's Office, Northern District of Oklahoma

TULSA, Okla. - The U.S. District Judge Sara E. Hill sentenced Marco Dionte Atkins and his mother, Sidney Brook Mayfield, after a jury found them guilty in September.

"Atkins acted recklessly and violently when he shot at someone outside of an occupied business, where children were present," said U.S. Attorney Clint Johnson. "After being arrested, Atkins and his mother relentlessly campaigned against witnesses, trying to evade being held accountable for their actions. I commend law enforcement for their hard work in pursuing justice."

In Nov. 2023, Sidney Mayfield pulled into a convenience store directly across the street from a high school. Five teenagers were in the car, including Marco Atkins, Mayfield's then 18-year-old son. The teens, Mayfield and Atkins, were seen entering the store on video surveillance. After a few minutes inside the store, a verbal altercation began between the teens and the victim. The teens, Mayfield and Atkins, left the store. The teens continued to argue with the victim outside. The video shows Atkins inside the vehicle, firing multiple rounds toward the victim, eventually hitting him in the stomach. Mayfield then sped off.

Shortly after Atkins was arrested in January 2024, Mayfield and Atkins began tampering with witnesses, obstructing the investigation, and commenting publicly about retaliation. Atkins' original trial was set to begin in June of 2024 but was forced to be continued due to their obstruction and witness tampering. After the trial was continued in June, evidence showed Mayfield ranting on social media about a witness being a "snitch," announcing the witness's full name and where the family resided. In the video played for the jury, Mayfield stated that she would "kill anybody" that went against her or her son and that she would "ride with Marco until the [explicit] wheels fell off." Shortly after she posted that video, Mayfield was indicted and arrested, and Atkins was charged with additional counts.

Atkins, 19, was sentenced to 180 months, followed by five years of supervised release. He was found guilty of Assault with a Dangerous Weapon with Intent to do Bodily Harm in Indian Country; and Using, Brandishing, and Discharging a Firearm During and in Relation to a Crime of Violence.

Mayfield, 39, was sentenced to 70 months, followed by three years of supervised release. She was found guilty of Retaliating Against a Witness, Victim, and Informant; Corruptly Tampering with a Witness, Victim, and Informant; and False Declaration Before a Grand Jury.

They were both found guilty of Conspiracy to Tamper with a Witness, Victim, and Informant by Corrupt Persuasion and Corruptly Obstructing the Due Administration of Justice.

Atkins and Mayfield are citizens of the Muscogee (Creek) Nation. They will remain in custody pending transfer to the U.S. Bureau of Prisons.

The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) and the Tulsa Police Department investigated the case. Assistant U.S. Attorneys John W. Dowdell and Kenneth Elmore prosecuted the case.

This case is part of Project Safe Neighborhoods (PSN), a program bringing together all levels of law enforcement and the communities they serve to reduce violent crime and gun violence, and to make our neighborhoods safer for everyone. On May 26, 2021, the Department launched a violent crime reduction strategy strengthening PSN based on these core principles: fostering trust and legitimacy in our communities, supporting community-based organizations that help prevent violence from occurring in the first place, setting focused and strategic enforcement priorities, and measuring the results. For more information about PSN, please visit Justice.gov/PSN.

Contact

Public Affairs
918-382-2755

Updated January 29, 2025
Topics
Project Safe Neighborhoods
Indian Country Law and Justice
Violent Crime