Argentines protest prosecutor's death

Updated 2:31 PM ET, Tue January 20, 2015
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Protesters in Buenos Aires are alleging a government cover-up in the mysterious death of prosecutor Alberto Nisman, who was found dead in his apartment Sunday. Jerry Nelson/CNN iReport
The mood changed from calm to anger as the night fell Monday. "As the sun started setting, the mood noticeably changed as people started charging the fence protecting Casa Rosada," said freelance photographer Jerry Nelson. The Casa Rosada is the presidential quarters. Jerry Nelson/CNN iReport
Nisman, who had been investigating the 1994 bombing of a Jewish community center, was found in his bathroom with a .22-caliber gun and a shell casing nearby. Jerry Nelson/CNN iReport
Nisman became a controversial figure when he accused Argentina's President and foreign minister of covering up Iran's involvement in the bombing. Jerry Nelson/CNN iReport
"CFK, the people will make you pay," reads a protester's sign, referring to President Cristina Fernandez de Kirchner. Nisman was set to testify on a report alleging that the President, Foreign Minister Hector Timerman and other officials had covered up Iran's involvement in the bombing of the Argentine Israelite Mutual Association building. Jerry Nelson/CNN iReport
Officials have called it a suicide, but investigators said they found no gun powder residue on Nisman's hands, deepening the mystery. Jerry Nelson/CNN iReport
"I am Nisman," reads a protest sign. Jerry Nelson/CNN iReport