On the morning of 28 December 1989, Civil Guard officers Isaac Rodrigo Ranilla and José María Sánchez Melero were on guard duty at the Office of the Revenue Department in Gijon (Asturias). At around 11.50 am, two individuals from GRAPO entered the building and went to the telephone booth where the police officers were. Without saying a word, each of the terrorists took out a pistol and opened fire on the civil guards. They shot Rodrigo again as he was lying on the ground and made off in a car driven by a member of the organisation. Both officers were killed. Fernando Silva Sande, María Jesús Romero Vega and Guillermo Vázquez Bautista were convicted and sentenced to imprisonment for the murder.
Isaac Rodrigo Ranilla (36) was born in Almendra del Pan (Zamora). His funeral was held in Gijon and he was buried in his native town.