On the evening of 9th June 1956 in an apartment in Buenos Aires, a dozen men were arrested on suspicion of plotting against the Argentine government. A few hours later, the local police chief received the order to execute them. Almost all were innocent. Operation Massacre recreates the events of that night & its aftermath in dramatic detail, from the horrifying, botched execution to the author`s successful efforts to track down the survivors & bring the perpetrators to justice. Pre-dating Capote`s In Cold Blood by over a decade, Operation Massacre is the original work of modern true crime. Walsh combines a passion for the truth with a novelist`s flair for storytelling. This -- his most celebrated work -- is a masterpiece of reportage, admired by writers as diverse as Jorge Luis Borges & Gabriel Garcia Márquez.