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Sheriff Johnny Mack Brown

Sheriff Johnny Mack Brown was elected as Greenville County Sheriff in 1976 and took office in 1977 where he served six terms. Sheriff Brown later retired in 2001 and became a U.S. Marshal after being nominated Pres. George W. Bush.

Upon appointment by Governor McMaster, Sheriff Brown returned to his position as Sheriff of Greenville County on April 17th 2018. 

The mission and vision of the GCSO remains the same: to defend the preservation of life, property and civil liberties within the context of legitimate state and county law enforcement policies, and to establish an atmosphere of trust and cooperation among our law enforcement officials and the citizens they serve, through legitimate policing which consistently upholds ethics, integrity, and transparency.

We stand ready to serve everyone in the community in a manner that upholds the values of the Greenville County Sheriff's Office and every deputy serving at this agency. We remain honored and proud to serve our citizens.

"This will always be a part of me, I'm glad to be back home."

~Sheriff Johnny Mack Brown




Chief Deputy
Marcus Davenport

Chief Deputy Marcus Davenport's distinguished career in law enforcement began in 1995, when he became a uniform patrol deputy with the Greenville County Sheriff's Office. Chief Deputy Davenport, who holds degrees in Criminal Justice and Psychology from the University of South Carolina, has since proudly served 21 years with the Sheriff's Office. Throughout those 21 years, Chief Deputy Davenport held the positions of Master Deputy, Sergeant, Lieutenant, Captain and Major. In addition to his current duties as Chief Deputy, he oversees the Office of the Sheriff, the department that focuses on community outreach and is the Chief Financial Officer for the Sheriff's Office. 

Outside of the Sheriff's Office, Chief Deputy Davenport enjoys volunteering for the Greenville Homeless Alliance and serving on the Inaugural Advisory Council at St. Joseph School in Greenville.



Major Ty Miller

Major Ty Miller began serving Greenville County as a law enforcement officer in 1999. Beginning her career in the Uniform Patrol Division of the Greenville County Sheriff's Office, Major Miller immediately focused on the area of crimes against children. Since then, Major Miller has dedicated most of her career to protecting and serving the most innocent citizens of the Greenville community in her roles as an investigator of child sexual assaults and as a board member for the Julie Valentine Center in Greenville. 


In 2012, Ty Miller was promoted to the rank of Sergeant and initiated collaboration with the Greenville County School District to develop and implement the "Zone Patrol Program," in the wake of the Sandy Hook school shooting. The following year, she was promoted to Lieutenant of the Public Information Office at the GCSO. Major Miller currently oversees the following divisions:
Administration Division which includes Administration, Public Affairs, Office of Professional Standards. She also manages the Support Division, Specialized Investigations and Emergency Management Divisions.




Major Chris Taylor

Chris Taylor serves as the Operations Major for the Greenville County Sheriff's Office. Major Taylor has 23 years of law enforcement experience, most of which has been dedicated to Uniform Patrol at the Sheriff's Office.

During his career, he has been instrumental in the successful career development of new hires and was the co-founder of the pre-Academy class conducted for newly hired GCSO deputies. Major Taylor helped to create the Dignitary Protection Team that has been tasked with security for Politicians and other Dignitaries and has worked closely with the Secret Service on many events.

Additionally, Major Taylor has received two Distinguished Service awards and was named GCSO Rookie of the Year in 1997.