
Nazi war criminal Klaus Barbie escaped to South America after World War 2, living Bolivia for decades before being tracked down and captured. He was then extradited to France and sentenced to life in prison on charges against humanity. He died in 1991.
However, before being caught, Barbie became a security advisor to drug lord Roberto Suarez in the 1970s. In an interview with German outlet Der Spiegel, Suarez's son said Barbie, who was living under the alias Klaus Altmann was "an important person to my father." "He knew something about security, military strategy and secret service work," Gary Suarez said.