Chapter 620: Chapter 564: Time of Death

Knock knock.

In the early morning, two police officers, led by a staff member of the Qingtong Factory, knocked on the door of the experts' building.

"Director Yang, two officers would like to ask about the details of a past case," the staff member introduced.

Director Yang had retired almost ten years ago, but he still dressed as though he was going to work, wearing a shirt that was neatly ironed with the sleeves rolled up to reveal the metal watch on his wrist.

Holding a rolled-up newspaper, he gently tapped it on his other hand and said, "Then come in."

The two officers looked at each other, apologized, and then entered.

The factory worker smiled and said, "I'll wait outside," and didn't enter.

Director Yang's living room still had the style of the old era, with a large, plush leather sofa, a wide-screen television, and a low coffee table set between the sofa and the TV...

"Would you like some tea?" Director Yang asked.