Leon CarrollLeon Carroll, Jr. co-authored the New York Times bestseller Ghosts of Honolulu. He previously served as technical advisor on the hit drama NCIS for twenty-one seasons and is currently working on the new show NCIS: Origis. Previously, he was a commissioned officer in the United States Marine Corps, attaining the rank of Major. Leon then began a twenty-year career as a Special Agent with the Naval Criminal Investigative Service (NCIS). He served in seven different locations, including tours as a Special Agent Afloat on the USS Ranger (CV-61) and as the Special Agent in Charge of NCIS offices in the Republic of Panama and the Pacific Northwest. Read More Read Less