章 494: 465 Chapter The clean rooftop_1

Before Zhou Ning could act, Mr. Zhao had already run over with a brick in hand.

Zhou Ning took a close look; the brick in Mr. Zhao's hand was similar to the broken ones scattered on the rooftop, all covered with moss and appearing very ancient. However, next to the moss, there were dark brown bloodstains visible.

"Good, keep searching. There's a lot of debris on the rooftop, so go over it inch by inch. Which direction is the surveillance camera facing, and where was the body last found?"

Mr. Zhao found a hand-drawn map, which was obviously drawn in the car based on the description given by He Hongjian, as directed by Liu Yufei. After comparing directions, Mr. Zhao pointed to the most eastern part of Building 2 on the north side of the gatehouse and said: