Back at the mortuary, the forensic anthropologists are resorting to similar tests to identify the dead, gluing together skulls shattered by bullets and studying dental records for clues.
Standing beside the gaping mass grave in a cemetery on the outskirts of this provincial capital, where around 40 suspected disappeared were tossed along with hospital waste and rubbish, Olmo is fighting against the odds.
His team, which helped find the remains of Marxist revolutionary Che Guevara in Bolivia, has recovered the remains of hundreds of Argentine disappeared over the years and has identified around 100.
"There are plenty of remains that will never be recovered," he said. "Thousands."
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