03 April 1974,
The torturing civilian guard Gregorio Posada was killed by ETA in Azpeitia. Posada was the head of the Information Services of Azpeitia and controlled the local youth. While traveling by car, two colleagues threw crumbles in front and in the statement of assumption of action, ETA stated that Posada had personally tortured many people. Charged with the murder, José Antonio Garmendia Tupa and Angel Otaegi were sentenced to death, but Tupa was finally sentenced to prison for a serious mental injury in detention. They were the last years of Franco and Otaegi was shot along with three other members of FRAP and Txiki on September 27, 1975.
Source:
Emilio López de Adam, Armed Struggle in the Basque Country (1967-2011). (May)