In 1982, the small Guatemalan village of Dos Erres was invaded by a group of army commandos known as the Kaibiles. More than 250 men, women and children were slaughtered. One of the few survivors, a 3-year-old boy, was abducted by a Kaibil officer and later raised by the soldier's family.

Oscar Alfredo Ramírez Castañeda knew nothing of his true identity — until last summer, when Guatemalan prosecutors investigating the Dos Erres massacre tracked him down.

In ProPublica's latest investigation, senior reporter Sebastian Rotella tells the story of how Oscar, an illegal immigrant working two jobs to support his family, became living proof of one of Guatemala's worst civil war atrocities. His editor, Tom Detzel, joins the podcast this week to explain how we found the story, why we took a different approach in telling it and more.

You can read "Finding Oscar: Massacre, Memory and Justice in Guatemala" on our site or purchase the eBook version here. The story was co-reported with This American Life from WBEZ Chicago, which produced a one-hour radio version. Also co-reporting was Fundación MEPI in Mexico City, which published the story in Spanish.

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