YANG Jo-hoon was born in Jeju-eup in December 1948, the era of Jeju 4·3. He studied at Jeju National University and the Graduate School of Public Administration at Dongguk University. He worked as a journalist from 1972 for 27 years. In 1988, as the head of the 4·3 coverage of the “Jeju Press”, he fatefully encountered the 4·3 while publishing “Testimonies of 4·3”. Since then, he has been serializing 『4·3 Says』, which reveals the truth of 4·3, for over 10 years, working as the head of the 4·3 coverage section of the “Jemin Ilbo” and the editor-in-chief. Since 1999, he has served as a co-representative of the 4·3 Special Law Fighting Association, leading the movement to enact the 4·3 Special Act. Since 2000, as a senior expert member of the 4·3 Committee (Chairperson of the Prime Minister), he has been responsible for preparing the “The Jeju 4·3 Incident Investigation Report”. He served as the first executive director of the 4·3 Peace Foundation, the Jeju Special Self-Governing Province deputy governor of the environment, and currently serves as the chairperson of Jeju 4·3 Peace Foundation.