At approximately 1:00 a.m. on July 4, 1976, three youths, Luis Pinasco, Guillermo Silva, and Julio Víctor Martínez, watched as two cars parked in front of the church of San Patricio.
A iso da 1 da mañá do 4 de xullo de 1976, tres mozos, Luis Pinasco, Guillermo Silva e Julio Víctor Martínez, viron como dous automóbiles estacionaban fronte á igrexa de San Patricio.