This is pure fabrication. The war was started by an ethnically constituted party/regional government that launched a preemptive attack on the national forces of the country. They went on to take possession of the majority of the armaments for the army that happened to be stationed in the region they controlled.

There is no circumstance in which a leader of a country witnesses an attack on the national army, whose armaments (including long range missiles) are looted and doesn't respond with force, and that's what he did. That number of deaths you quoted isn't based on any evidence or data. There is also no evidence his forces "consistently" used extrajudicial killings or rape or starvation. A joint investigation with the UN already conducted proved as much.