Turk began working for the United States Marshals Service in early 1990 and became the assistant to the historian in 1991.
[2][3] He has documented the agency’s history through articles,[4] television production contributions,[5] radio interviews,[6] and a book.
[16] Working with the Department of Justice Libraries, he developed programs for the 40th and 50th anniversaries of the integration of the University of Mississippi.
The former is notable for its investigative study (with Sederwall) on the March 1878 deaths of three men that crossed the Kid, which was earlier popularized in film with "Young Guns II."
[32][7] The book is a detailed study of the agency’s development from a district-based to a headquarters-based organization, which included the Civil Rights Era and operations during and after September 11, 2001.