CNN International | 9/26/2008 12:00:00 AM
Colombia probes mysterious deaths
Sept 26 -- Blanca Nubia Monroy's son said he would not be gone long.He left his mother's house one Sunday in March, she said, saying he needed to talk with a man about work but that he would be back for dinner. Monroy never saw her son alive again.
When he and 20 other young men turned up dead in a common grave in the mountains of Colombia, a military commander said they had been killed in clashes with the army.
Yet relatives say they have struggled for months to understand the circumstances that led to the deaths in and around Ocana, roughly 800 kilometers (500 miles) northeast of Bogota.
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