Three years later , the 6 October 1976 massacre took place on the Tha Phra Chan campus . The event began with protests against the return of exiled dictator Thanom Kittikachorn . Violence first appeared on 25 September when two EGAT employees who handed out protest literature in Nakhon Pathom were branded " communists " , beaten to death , and their bodies hung from a wall . This led to peaceful protests by labor groups , students , and other activists demanding the expulsion of Thanom
6 October 1976 massacre
Thammasat University massacre
Thammasat University