Permanently sealed

"This well is 5.5 meters deep and made of bricks and cement. It is cylindrical and has a diameter of 1.1 meters," Wang Fei explained."Four male bodies were found in the well. The four bodies were arranged from top to bottom, with obvious layers.

"The further down we go, the longer the bones are buried!"

"Layer?" Zhao Yu pointed to the model of the well and said,"can I understand it this way? Every time the murderer threw someone down, he would bury them?"

"It's not just soil, there are also stones ..." Wang Fei explained,"the lower we go, the more obvious the damage is!"

"Oh ..." Zhao Yu finally understood why Wang Fei had set up a model before looking at the skeleton. It was to let him understand the situation more directly.

"Every corpse was found in a different year," Wang Fei continued,"through soil analysis, we found that the first skeleton in the deepest layer was buried about five years ago.

"The skeleton on the third floor was from four years ago;