Alison Des Forges, 66, Human Rights Advocate, Dies

Mahmood Mamdani, a professor of government and anthropology at Columbia University and the author of the book “When Victims Become Killers: Colonialism, Nativism and Genocide in Rwanda” (2001), called Dr. Des Forges “the leading person who sought to document the events leading up to the Rwandan genocide, so that future generations would have the material on hand to draw the appropriate lessons from it.”