Barrick Gold Corp's African Gold Mine

Barrick Gold Corp's African Gold Mine

Trevor Snapp/Bloomberg

Eunice Werema, right, the widow of Mwita Werema, sits with her children at the family home in the hamlet of Sekube, in the district of Kiwanja, Tanzania. Werema's husband was shot and killed by security forces at the North Mara mine, according to a friend who was with him.