1977 Atocha massacre

On the evening of 24 January 1977, three men entered a legal aid office for workers run by the Communist Party of Spain (PCE) at 55 Atocha Street in central Madrid and opened fire on those present. Five people were killed: labour lawyers Enrique Valdelvira Ibáñez, Luis Javier Benavides Orgaz and Francisco Javier Sauquillo; law student Serafín Holgado de Antonio; and administrative assistant Ángel Rodríguez Leal. Four others — Miguel Sarabia Gil, Alejandro Ruiz-Huerta Carbonell, Luis Ramos Pardo and Dolores González Ruiz — were gravely wounded but survived. González Ruiz, the wife of Sauquillo, was pregnant and lost the child as a result of the attack.

The gunmen's intended target was the general secretary of the workers' federation Comisiones Obreras, who had been leading a transport strike in Madrid but had left the office shortly before. Not finding him, the attackers lined the remaining staff against a wall and shot them. The killings took place amid a far-right reaction to Spain's transition to constitutional democracy following the November 1975 death of dictator Francisco Franco, and were intended to provoke a violent left-wing response that might legitimise a right-wing counter-coup. The attack instead generated mass public revulsion toward the far right.

In the days that followed, calls for work stoppages were heeded by upwards of half a million workers across Spain, and between 50,000 and 100,000 people watched in silence as several victims' coffins were carried for burial in Madrid. The PCE, which had promoted a peaceful response, was legalised on 9 April 1977, ending a ban in place since 1939, and independent unions gained legal recognition that spring. These developments are generally credited with helping Spain's first elections in four decades proceed peacefully in June 1977.

On 15 March 1977, José Fernández Cerrá, Carlos García Juliá and Fernando Lerdo de Tejada were arrested as the perpetrators; a Francoist transport-union official was arrested for having ordered the killings, and two others for supplying weapons. All had links to neo-fascist organisations opposed to the democratic transition. At the trial in February 1980, the defendants were sentenced to a combined 464 years, with Fernández Cerrá and García Juliá each receiving 193 years. The terms were later sharply reduced. Fernández Cerrá was released in 1992; Lerdo de Tejada fled before trial and the statute of limitations for his case expired in 1997; García Juliá absconded while on parole and, after more than two decades at large, was rearrested in Brazil in 2018 and extradited to Spain in February 2020.

Doubts remain over whether everyone responsible was brought to justice; a lawyer who worked on the original prosecution later stated that the masterminds were never identified. The events are widely regarded as a turning point in Spain's return to democracy, and the victims are memorialised annually and through 25 streets and squares dedicated to them across Madrid.