Nelson Mandela's grandson Mandla Mandela facing charges over the illegal tampering of graves, South African media reported, citing police spokesman Mzukisi Fatyela.
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Mladic, now 75, was the military commander of Bosnian Serb forces in the 1990s, who fought against the Bosnian Croat and Bosniak armies.
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His representatives said Cassidy, who was hospitalised last week, died "surrounded by those he loved."