Cameroon - Yaoundé - Richard Tchakunte, 50, covers his eyes as he recalls the words of his 18 years old son, Fabrice Gantat who left the family house in March 2015. Since then, Fabrice has never contacted his family. His father got the confirmation he left only by inquiring among his friends. "They told me he called them when he left. He called them, but not me, his father" he adds, his heart full of bitterness.