Slain journalist's fiancee wants Saudis pressured at G-20

The fiancee of slain journalist Jamal Khashoggi said she hopes Group of 20 leaders put pressure on Saudi Arabia at a summit this week to divulge more information about the killing, ratcheting up a campaign for justice that she also brought to the U.N.'s top human rights body Tuesday.

Hatice Cengiz spoke at a Human Rights Council event in Geneva about her grief from Khashoggi's October death at the Saudi Consulate in Istanbul. In an interview afterward, she said Saudi authorities "have to be punished in some way" for his slaying.

An independent U.N. expert said in a report made public last week that Saudi Arabia bears responsibility for The Washington Post...