John Thomas Manger is an American former police officer who served as the 11th chief of the

United States Capitol Police The United States Capitol Police (USCP) is a federal law enforcement agency in the United States with nationwide jurisdiction charged with protecting the United States Congress within the District of Columbia and throughout the United States an ...

until his retirement in 2025. He previously served as the chief of the

Montgomery County Police Department The Montgomery County Police Department (MCPD), officially the Montgomery County Department of Police (MCP or MCDP), is a Commission on Accreditation for Law Enforcement Agencies, nationally accredited agency and the primary law enforcement age ...

. Manger was selected to lead the Capitol Police in the aftermath of the

January 6 United States Capitol attack On January 6, 2021, the United States Capitol in Washington, D.C., was attacked by a mob of supporters of Donald Trump, President Donald Trump in an attempted self-coup,Multiple sources: * * * * * * * * * * * * * two months afte ...

. He served in that role for nearly four years, retiring on May 2, 2025.

Early life and education

Manger was born in

Baltimore Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, it is the 30th-most populous U.S. city. The Baltimore metropolitan area is the 20th-large ...

in and is named after both his father and grandfather. When he was 14, his family moved from Baltimore City to

Silver Spring, Maryland Silver Spring is a census-designated place (CDP) in southeastern Montgomery County, Maryland, United States, near Washington, D.C. Although officially Unincorporated area, unincorporated, it is an edge city with a population of 81,015 at the 2020 ...

. Manger has three siblings. Manger graduated from the

University of Maryland, College Park The University of Maryland, College Park (University of Maryland, UMD, or simply Maryland) is a public university, public Land-grant university, land-grant research university in College Park, Maryland, United States. Founded in 1856, UMD i ...

in 1976 with a Bachelor of Science degree in criminal justice. He is also a graduate of the

FBI National Academy The FBI National Academy is a program of the Federal Bureau of Investigation (FBI) Academy for active U.S. law enforcement personnel and also for international law enforcement personnel who seek to enhance their credentials in their field and to ...

Career

Manger started his career in law enforcement in January 1977 as an officer with the

Fairfax County Police Department The Fairfax County Police Department, commonly referred to as FCPD, is the primary law enforcement agency serving Fairfax County, Virginia. FCPD serve a population of approximately 1,170,033 residents within an area of approximately . History ...

. From 1998 to 2004, Manger served as chief of the department. In 2004 Manger took over as chief of police in Montgomery County, Maryland. He retired from the post in 2019. Manger took over as chief of the

on July 23, 2021, replacing Acting Chief

Yogananda Pittman Yogananda D. Pittman is an American police officer who is the University of California, Berkeley chief of police. She was formerly the assistant chief and acting chief of the United States Capitol Police (USCP), serving in those posts during and ...

. On March 11, 2025, Manger announced his retirement effective May 2. Shortly after retiring, it was announced that Manger would join the consulting 21CP Solutions as a senior advisor.

Personal life

Manger is married and has two children.

Awards and honors

* 1993 Silver Medal of Valor from Fairfax County, Virginia * 2007 Law Enforcement Award from the Brady Campaign to Prevent Gun Violence * 2012 inducted into the Montgomery county Human Rights Hall of Fame * 2016 Gorowitz Institute Service Award from the Anti-Defamation League * 2017 Keeper of the Dream award from the National Immigration Forum * 2018 FBI National Executive Institute Associates Penrith Award * 2018 recognised as one of the Washingtonians of the Year by Washingtonian magazine

References

External links

* {{DEFAULTSORT:Manger, J. Thomas American police chiefs FBI National Academy graduates Law enforcement officials from Maryland University System of Maryland alumni United States Capitol Police officers Living people Year of birth missing (living people) Law enforcement officials from Baltimore People from Silver Spring, Maryland People from Fairfax County, Virginia 21st-century United States government officials Chiefs of the Montgomery County Police Department