Two Oklahoma City Men Plead Guilty to Firearms Offenses as Part of Partnership Between Oklahoma City and the U.S. Attorney’s Office

Source: United States Bureau of Alcohol Tobacco Firearms and Explosives (ATF)

OKLAHOMA CITY – Two defendants have pled guilty to firearms charges in unrelated cases prosecuted, in part, through a partnership between the City of Oklahoma City and the U.S. Attorney’s Office for the Western District of Oklahoma to enhance efforts to address violent crime in Oklahoma City.

On March 4, 2025, a federal Grand Jury charged DAVY EUGENE KING, 52, of Oklahoma City, with illegal possession of a firearm after a previous felony conviction. King pled guilty on April 19, 2025, and admitted he possessed a firearm despite his previous felony convictions. Public record reflects that King has numerous previous felony convictions in Oklahoma County District Court, including, second-degree murder in case number CF-1990-5376, possession of a stolen vehicle in case number CF-2014-4630, attempted grand larceny in case number CF-2014-5432, and domestic abuse (assault and battery) in case number CF-2014-2946. King faces up to 15 years in federal prison and a fine of up to $250,000 at sentencing.

On February 20, 2025, a separate federal Grand Jury charged ROBERT DEWAYNE MAYFIELD, 23, of Oklahoma City, with unlawful possession of a machinegun. Mayfield pled guilty on April 19, 2025, and admitted he possessed a firearm which had been modified with a machinegun conversion device (MCD). When attached, MCDs convert semi-automatic weapons into fully automatic machineguns, and possession of the devices violates federal law. Mayfield faces up to 10 years in federal prison and a fine of up to $250,000 at sentencing.

These cases are the result of investigations by the Oklahoma City Police Department and the Bureau of Alcohol, Tobacco, Firearms and Explosives. They are being prosecuted by Special Assistant U.S. Attorney Laney Ellis (SAUSA).  SAUSA Ellis is an attorney with City of Oklahoma City whose position is funded by a federal Project Safe Neighborhoods grant awarded to the City of Oklahoma City to enhance efforts to address and reduce violent crime.

“This collaboration with Oklahoma City will strengthen public safety,” said U.S. Attorney Robert J. Troester. “Our close partnership with the Oklahoma City Police Department is further strengthened with an additional prosecutor to hold accountable those who commit violent crimes under federal law in Oklahoma City.”

“These prosecutions demonstrate the power of our partnership with the U.S. Attorney’s Office to disrupt violent offenders and take dangerous weapons off our streets,” said Oklahoma City Police Chief Ron Bacy. “Together, we’re sending a clear message that we will not tolerate gun crime in our city.”

These cases are also part of “Shots Fired” and “Project Switch Off,” the Western District of Oklahoma’s implementation 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. “Shots Fired” targets cases involving individuals who discharge firearms as part of their criminal activity, such as drive-by shootings or when shots are fired during robberies, domestic disputes, or other incidents. “Project Switch Off” targets illegal MCDs to address the significant danger these illegal devices present and to remove them from our streets.

Reference is made to public filings for additional information.