Gustavo de Greiff

Gustavo de Greiff Restrepo (June 20, 1929 – July 19, 2018) was a Colombian lawyer, educator and activist, who served as Attorney General of Colombia during the Gaviria presidency and later as Ambassador to Mexico during the Samper presidency. He was an outspoken critic of the United States' War on Drugs in Colombia, and an advocate for drug liberalization policies. Provided by Wikipedia