During his studies at the Faculty of Medicine , Chiang Mai University , he became involved in the students ' movement that initiated the October 1973 popular uprising against the military dictatorship of Thanom Kittikachorn . He was a leader of the '' Pracha Tham '' ( " Dharma Party " ) a leftist students ' party at Chiang Mai University . The party won the university elections and he became president of the student council . After the Thammasat University massacre of 6 October 1976 , he joined the illegal Communist Party of Thailand and hid its camps in the jungle . During this time he was editor of the communist-affiliated student magazine '' Athipat '' ( " Sovereign " )
Thammasat University massacre
Thammasat University massacre
Chaturon Chaisang