U.S. Marshals' Biographies

Robert Anthony Dixon, aka Tony, was appointed to serve as the fifth U.S. Marshal for the United States Marshals Service for the Superior Court of the District of Columbia on December 5, 2019. He began his more than 35 year law enforcement career as a Criminal Investigator with the U.S. Department of Labor (DOL).

Mark Pittella is the Acting Director of the United States Marshals Service. For over two decades, Acting Director Pittella has been a key leader in the U.S. Marshals Service, most notably in its world-renowned Witness Security Division.

William B. Berger was sworn in as the United States Marshal of the Middle District of Florida on February 7, 2011. The District is comprised of five offices located in Tampa, Jacksonville, Ocala, Orlando, and Ft. Myers.

Gadyaces S. Serralta was nominated by President Donald J. Trump to serve as the United States Marshal for the Southern District of Florida in April 2018.

Marshal Lyons previously served as Chief of Police in Garden City, GA, a position he held for 16 years. While serving as Garden City Police Chief, Marshal Lyons was appointed to the Criminal Justice Coordinating Council and was elected to the Executive Board of the Georgia Association of Chiefs of Police.

The Honorable Thomas E. Brown was nominated by President Joseph R. Biden Jr., confirmed by the Senate, and appointed on October 17, 2022, to serve as the United States Marshal (USM) for the Northern District of Georgia.

Stephen D. Lynn was nominated by President Joseph R. Biden, Jr., confirmed by the United States Senate, and appointed on October 5, 2022, to serve as the United States Marshal (USM) for the Middle District of Georgia.

Fernando Leon Guerrero Sablan serves as the United States Marshal for the District of Guam and the Northern Mariana Islands. Fernando Sablan began his law enforcement career with the Guam Police Department where he worked for 22 years, rising through the ranks until he retired as a Major.

As Marshal, Bunn is responsible for U.S. Marshals Service operations in the District's 44 counties, encompassing over 83,000 square miles of land. He is responsible for overseeing daily operations of the District’s three offices, located in Boise, Coeur d'Alene and Pocatello.

Brendan O. Heffner serves as the United States Marshal for the Central District of Illinois. He was confirmed by the United States Senate April 26, 2018 and sworn in May 25, 2018. Marshal Heffner's responsibilities encompass leading and directing operations, including security and protection of the United States Courts, criminal investigations, fugitive apprehension, execution of federal court orders and other law enforcement activities.

LaDon Reynolds was nominated on November 12, 2021 to be the U.S. Marshal for the Northern District of Illinois. Mr. Reynolds held numerous leadership positions while at the department, including Detective Commander.

The Honorable David C. Davis was nominated by President Joseph R. Biden, Jr., confirmed by the United States Senate, and appointed on January 3, 2023, to serve as the United States Marshal (USM) for the Southern District of Illinois.