Is Jiang Zemin Dead or Alive?

How do you tell when a major event has occurred when you live in a state where many things aren’t transparent?

On the night of July 4, social networks in China lit up with a rumor that the former Chinese President, Jiang Zemin, had died.

In Shanghai:

The only thing that struck me as unusual in the neighborhood was the four traffic assistants stationed on a busy corner, directing pedestrians to obey the walk signals — at midnight. Did traffic assistants at midnight mean that Jiang Zemin was dead?