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Press Release

South Florida Residents Arrested for Building “Ghost Guns” and Machine Gun Conversion Devices

For Immediate Release
U.S. Attorney's Office, Southern District of Florida

MIAMI – This week, Marshal Vivian Harris, 37, of Davie, Florida, and Wisler Majeure Jacques, 40, of Margate, Florida, appeared in federal court in Miami following their arrests for dealing firearms without a license and possession or transfer of a machine gun. 

According to court documents, special agents with the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) began investigating Harris and Jacques in February 2023. During the investigation, Jacques sold approximately 27 “ghost guns” and 48 auto sears to investigators. Ghost guns are unserialized and untraceable firearms that can be bought online and assembled at home. Auto sears are devices that turn handguns into machine guns.

Jacques obtained these “ghost guns” from Harris before selling them to law enforcement. On April 25, law enforcement executed a federal search warrant at Harris’ residence. During the search, agents found 3D printing equipment and a computerized mill machine that was designed to manufacture firearms parts. Agents also found several partially completed ghost guns. Harris later admitted to possessing the firearm manufacturing equipment and admitted that he attempted to use the 3D printer to manufacture auto sears.

U.S. Attorney Markenzy Lapointe for the Southern District of Florida and Special Agent in Charge Christopher A. Robinson of the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF), Miami Field Division, announced the charges.

ATF Miami Field Division investigated this matter. Assistant U.S. Attorney Kevin Gerarde is prosecuting it.

This case and prosecution was carried out by members of the South Florida High Intensity Drug Trafficking Area (HIDTA) Task Force. The South Florida HIDTA, established in 1990, is made up of federal, state and local law enforcement agencies who, cooperatively, target the region’s drug-trafficking and money laundering organizations. The South Florida HIDTA is funded by the Office of National Drug Control Policy, which sponsors a variety of initiatives focused on the nation’s illicit drug trafficking threats.

An indictment contains mere allegations, and all defendants are presumed innocent unless and until proven guilty in a court of law.

Related court documents and information may be found on the website of the District Court for the Southern District of Florida at or at under case numbers 23-mj-02790 and 23-mj-02789.



Public Affairs Unit

U.S. Attorney’s Office

Southern District of Florida

Updated January 30, 2024

Firearms Offenses