Axel Blumberg, 23, was kidnapped and murdered in 2004 in Buenos Aires. His father, Juan Carlos, says: "It has been extraordinary being his dad" The case generated harsher penalties against the criminals after the massive marches throughout Argentina.

Juan Carlos: "For five days I lived next to the phone. He didn't eat, he didn't sleep, he barely drank water. He was waiting for the next call" The kidnapping left six modifications to the Penal Code, eight convictions and 5,545,000 signatures.