TWENTY years ago on November 10, 1995, more than two years after he made this grim prediction, Ken Saro-Wiwa, renowned writer, TV producer, newspaper columnist and irrepressible minority and environment rights campaigner did indeed die. But not a natural death. He was executed along with eight others by a Nigerian state in the grip of military dictator Sani Abacha who felt he had run out of patience with the man that pummeled Nigeria for her tragic ecological record in the Niger Delta notably, Ogoni land