Turkey has furthered the cause of justice by refusing to let Saudi Arabia evade responsibility for the killing of Jamal Khashoggi, the Washington Post columnist.

The steady drip of reports from President Recep Tayyip Erdogan’s government-controlled news media over the past three weeks, exposing grisly details of the killing, has drawn the world’s attention to the ruthlessness of the kingdom’s young crown prince, Mohammed bin Salman, even as the Trump administration gave every sign of longing to look away.

On Tuesday, Mr. Erdogan again drew the world’s eyes to this atrocity by addressing the issue at length for the first time, in a speech to members of his party.

He described the killing as “premeditated murder” and laid out a chronology of what happened. He also demanded that the Saudis provide more details — many questions remain unanswered — and extradite the 18 suspects they detained to face justice in Turkey. And he suggested that Prince Mohammed or someone close to him had directed the assault, which took place at the Saudi Consulate in Istanbul.