Dr. Petros Habtemikael

During the period of the Dergue (1974-91) there were a number of egregious abuses against academic
freedom at Asmara University. An early incident was the killing of Dr. Petros Habtemikael, an economist, in 1975. Dr. Petros taught extension courses in the evening, and some of his students were Ethiopian military officers, who objected to his use of Eritrean rather than Ethiopian examples in his coursework, and to the low grades they were given. It is believed that the officers caused Dr. Petros to be detained and executed.

Source Freedom of Expression and Ethnic Discrimination in the Educational System: Past
and Future