Neretse is the first Rwandan prosecuted in a Belgian court for war crimes related to the Rwandan genocide.
Neretse who was living in France, is guilty of having denounced several people of Tutsi origin living in his neighbourhood in the Nyamirambo neighbourhod of the Rwandan capital, Kigali on 9 April 1994 at the outbreak of the mass killings.
They were then shot dead by soldiers while they were preparing to flee their homes to join the United Nations Assistance Mission for Rwanda (UNAMIR) camp.
The victims included members of the Sisi and Gakwaya families, as well as a Belgian, Claire Beckers, her husband, Isaiah Bucyana, and their daughter Katia.
Neretse is also guilty of masterminding other murders, including those of Joseph Mpendwanzi and Anastase Nzamwita in May and June 1994, near Mataba, his native village in north-western Rwanda, where he had settled mid-April 1994.
The jury established that Neretse had created, sustained and financed militia members of the Interahamwe, who committed numerous murders of Tutsis and moderate Hutus.