It was expected that Zhou Yongkang's trial would be played out for the Chinese public; his failings strung out for every citizen to see.
In similar high-profile cases, like that of Zhou's protege, Bo Xilai, the foreign and Chinese media were given 48 hours' notice that Bo's trial would begin. Reporters camped outside the courthouse for days, breathlessly waiting for updates.
In March, the head of China's Supreme People's Court had promised that Zhou Yongkang's trial would be "open in accordance with the law". The trial was set to take place in the eastern port city of Tianjin. It seemed Zhou was set to follow Bo's pattern. Like other senior officials convicted of serious crimes, it was expected he would receive a suspended death sentence.
Months passed without any word. Some guessed that Zhou Yongkang was not co-operating with prosecutors. Others believed that his crimes were too much of an embarrassment for the government.
After all, Zhou Yongkang had held a seat at the very top of the Chinese government pyramid. If he was thoroughly corrupt, some in China might ask whether others at the top were rotten too.
In the end, the decision to keep Zhou Yongkang's trial secret matches the case surrounding him, and Zhou's own public persona: inaccessible and secretive.