Prosecutors of Taylor say supermodel got diamonds from former west African president . Campbell will not testify voluntarily , they say . Charles Taylor faces war crimes charges in special court over brutal war in South Africa . He denies charges .
Prosecutors of Charles Taylor say supermodel got diamonds from former Liberian president . Naomi Campbell will not testify voluntarily , they say . Taylor faces war crimes charges in special court over brutal war in Sierra Leone . He denies charges .