Barrick Gold Corp's African Gold Mine

Barrick Gold Corp's African Gold Mine

Trevor Snapp/Bloomberg

Marita Nyamakono, grandmother of 17-year-old Chacha Nyamakono, sits at the family home in the district of Mrito, Tanzania. Chacha Nyamakono was the first in his family to attempt an education and always had his nose in his books, said a relative. After he was killed by gunfire from North Mara mine security on July 8, 2009, the family burned his school papers and notebooks, saying they were too painful a reminder of him.