CITGO employees Tomeu Vadell, Gustavo Cardenas, Jorge Toledo, Alirio Jose Zambrano, Jose Luis Zambrano and Jose Angel Pereira were sentenced to between 8 and 13 years, the source said. The guilty verdicts punctuate a years-long saga that began in November 2017 when the men received a call from the head of Venezuelan oil giant PDVSA summoning them to Caracas for a last-minute budget meeting. When they arrived, armed and masked security agents arrested them on embezzlement charges stemming from a never-executed proposal to refinance some $4 billion in CITGO bonds by offering a 50% stake in the company as collateral....