KIGALI, Rwanda—A jet roared overhead as we approached the crash site, strolling through a garden of fruit trees at the home of the late Rwandan president, Juvénal Habyarimana. In front of us ...

French authorities on Tuesday briefly detained the widow of Rwandan President Juvenal Habyarimana, who is being sought by Rwanda on charges related to the nation's 1994 genocide, officials said.