Montearenas (Autopista A-6), Ponferrada, León. The construction of the A-6 motorway entailed the loss of several mass graves. There are 60 documented murders here, but there may be more than 200. Bernabé González Cañas, 29, was shot and buried in a mass grave on 20 September, 1937.O Amenal II, O Pino, La Coruña. 20.08.1936, 5 municipal council members of Boimorto, Caitán García Vázquez, Isidro and Andrés Filloy López were murdered and received the coup de grâce on the side of the road.