After an intense international campaign, South Africa gave them back to their origin place, Cameroon. The four gorillas, who were already teenagers at that time, were integrated to a group of 12 gorillas that lives in Limbe Sanctuary.

The necropsy material is being evaluated by labs in Europe, to define the cause of death. However, one believes that the stress suffered during his confusing life could have weakened their immunity, converting them in easy preys to human diseases. Gorillas are delicate beings, who do not adapt well to a life outside their natural habitat.
 
PASA executive director, Doug Cress, declared about what happened: "We are deeply sad for Izan\’s death and our hearts come together to everyone in Limbe who have been fighting intensely for months to save his life."
 
Frank Lankester, Limbe Sanctuary administrator, also declared: "This is a terrible lost to all of us. We did everything that was possible to find out the origin of the disease, but in the end he was very weak to continue to fight. We will miss him very much."