Helen Mack Chang

Helen Beatriz Mack Chang (born January 19th 1952) is a Guatemalan businesswoman and human rights activist. She became an outspoken advocate for human rights after her sister, anthropologist Myrna Mack Chang, was assassinated by the Guatemalan military on September 11th 1990. She pursued prosecution of her sister's assailants, including ground-breaking cases in the Inter-American Court of Human Rights, achieving convictions of one assailant and a high-ranking colonel. The Guatemalan government acknowledged responsibility in 2004 and has paid compensation to Mack and her family.