Writer and environmental activist Ken Saro-Wiwa and eight others from the Movement for the Survival of the Ogoni People were executed by the Nigerian military government.

Ken Saro-Wiwa
Kenule Beeson Saro-Wiwa was a Nigerian writer, teacher, television producer, and social rights activist. A member of the Ogoni people, an ethnic minority in the Niger Delta whose homeland, Ogoniland, has been targeted for crude oil extraction since the 1950s and has suffered extreme environmental damage from decades of indiscriminate petroleum waste dumping.
Movement for the Survival of the Ogoni People
The Movement for the Survival of the Ogoni People (MOSOP), is a social movement organization representing the indigenous Ogoni people of Rivers State, Nigeria. The Ogoni contend that Shell Petroleum Development Company (SPDC), along with other petroleum multinationals and the Nigerian government, have destroyed their environment, polluted their rivers, and provided no benefits in return for enormous oil revenues extracted from their lands.