Barrick Gold Corp's African Gold Mine

Barrick Gold Corp's African Gold Mine

Trevor Snapp/Bloomberg

Ngoka Chacha, with a photograph of his son Mwita Ngoka, seen standing with family members at their home in the district of Nyangoto, Tanzania. Mwita Ngoka, aged 20, was looking for gold with friends on April 10, 2010, when security forces chased them and shot his son, said Chacha.