William "Bill" O'Brien (March 10, 1944 – March 3, 2016) was an American police officer who served as the 21st Police Chief of Miami, Florida, from 1998 until 2000.
 O'Brien served as a Miami Police Department police officer for more than 25 years, including 18 years as a member of the city's SWAT team and two years as Miami Police Chief.
 He resigned as Police Chief on April 28, 2000, in the aftermath of the Elián González custody battle raid.
Daniel J. Oates (born January 2, 1955) is the police chief in Miami Beach.
 He was formerly the Police Chief of Aurora, Colorado He was also formerly the Chief of Police and Safety Services Administrator for the City of Ann Arbor, Michigan.
 Oates was appointed Chief of Police on August 20, 2001 after serving 21 years in the New York Police Department.
 In August 2002, Oates became Ann Arbor's first Safety Services Administrator.
 He is a charter member of the federal Criminal Intelligence Coordinating Council.
 While with the Aurora Police Department, he was responsible for the criminal investigation of a 2012 mass shooting at a local movie theater, which was one of the largest mass shootings in American history.
Wang Lijun (born 26 December 1959) is a former Chinese regional police chief.
 He served as vice-mayor and police chief of the megacity of Chongqing.
 Wang is ethnically Mongol and was born in Arxan, Inner Mongolia.
 Prior to taking on positions in Chongqing, Wang served as vice-mayor and police chief of Jinzhou, Liaoning, and the police chief of Tieling, Liaoning.
Charles Everett Lively (1887–1962) was a private detective affiliated with the Baldwin-Felts Detective Agency.
 He played an active role in the Coal Wars in Appalachia, and is chiefly remembered as one of the assassins of Police Chief Sid Hatfield.
Pradip Shumsher J.B.R. is a former chief of Nepal Police, who served as the IGP from September 1999 to December 2001.
 He was preceded by Achyut Krishna Kharel and was succeeded by Shyam Bhakta Thapa as the police chief.
 During his tenure as police chief, he had introduced Mahendra Police Swimming Complex, which cost a budget of Rs. 7 crores.
 The Royal Palace Massacre (2001) had also occurred during his tenure as police chief.
Zelma Charles Wyche (January 24, 1918 – September 24, 1999) was an African American civil rights activist in majority black Tallulah in Madison Parish in northeastern Louisiana.
 He held the offices of police chief, alderman, and mayor.
 After many years at the grass roots, Wyche began to receive national attention for his work to dismantle racial segregation.
 In January 1970, six months after he had become Tallulah police chief, "Ebony Magazine" featured him in the article, "Black Lawman in KKK Territory," a reference to the Tallulah branch of the Ku Klux Klan, which fought desegregation in the American South.
 Until he became police chief, Wyche had earned his living as a barber.
William Sidney "Sid" Hatfield (May 15, 1891 or 1893 – August 1, 1921), was Police Chief of Matewan, West Virginia during the Battle of Matewan, a shootout that followed a series of evictions carried out by detectives from the Baldwin-Felts Detective Agency.
Cathy Lynn Lanier (born July 22, 1967) was the chief of the Metropolitan Police Department of the District of Columbia (MPDC).
 Lanier was appointed by Washington, D.C. Mayor Adrian Fenty in January 2007, replacing outgoing Police Chief Charles H. Ramsey.
 She is the first woman to achieve the position.
 In May 2012, Mayor Vincent C. Gray agreed to retain Lanier as police chief under a new five-year contract.
 On August 16, 2016, it was announced that Lanier would retire from the Metropolitan Police Department of the District of Columbia in September 2016 to become Senior Vice President of Security for the National Football League.
 Her last day as Police Chief was September 15, 2016.
General Neth Savoeun (Khmer: នេត សាវឿន ) is the National Police Chief of Cambodia.
 Savoeun was promoted from Deputy National Police Chief to the most senior law enforcement position of the country in November 2008 after his predecessor, Hok Lundy, whose tenure was mired in controversy and accusations of corruption, died in a helicopter crash.
 Savoeun, who was 52 years old at the time of his appointment, is married to Prime Minister Hun Sen's niece, Hun Kimleng.
 Prior to the National Police force, Savoeun was the police chief of Phnom Penh during the State of Cambodia and then, after the 1993 elections, head of the justice department in the Interior Ministry’s Penal Crimes Division.
Shyam Bhakta Thapa (Nepali: श्यामभक्त थापा ) is the 19th IGP of Nepal and the last police officer of Nepal Police to serve as the police chief during the Maoists Insurgency.
 He was preceded by Pradip Shumsher J.B.R. as the police chief and was succeeded by Om Bikram Rana.
 He had been the police chief during the Peoples Movement II.

Question: In which city did the police chief assassinated by Charles Everett Lively?
Answer: Matewan, West Virginia