This brief text introduces a testimony from 1975 about the capture of Natale Kolaric (born in Muggia in 1908), an important communist leader in the Venezia Giulia during the Mussolinian Ventennio. For many years his capture was surrounded by an aura of mystery, which resulted in diverse and polemical historiographical accounts. Four witnesses, Kolaric’s communist comrades from Isonzo area, recount his final days, including details of his arrest in Vermegliano, his imprisonment in Trieste, the torture he experienced, and the death sentence handed down by the German SS.