Fabien Nerelse is to be sentenced later today by a Belgian court.
A 71-year-old agricultural scientist is the first person in Belgium to be charged and sentenced on such a charge in Belgium for genocide in Rwanda.
On Thursday the court in Brussels found former Rwandan official Fabien Neretse guilty of genocide and war crimes during the massacres in his country in 1994.
He was found guilty of ordering nine murders in Rwanda in April and July 1994.
The prosecution also showed that he had attended public rallies encouraging fellow members of the Hutu ethnic group to slaughter the minority Tutsi community, reports Deutsche Welle news site.
Thou he reportedly maintained his innocence throughout the trial but the prosecutors said that he had been living a lie for a quarter of a century, reports the AFP news agency.
He now faces a possible life sentence if found gulity.