The cause of the incident was that Liu wanted to get rich overnight, so he wanted to rob the tomb. As a result, when he opened the grave, he found that there were not many gold and silver treasures. Later, the three men discussed it and thought that they could threaten their families with corpses. In fact, Liu's behavior itself has violated the law, and from a moral point of view, these three people should also be condemned. China has a saying since ancient times, no matter what the reason, you can't touch the old man's body.
It can also be seen from this incident that burial is still very popular in many areas of China. If it is a burial, it is easy to happen. At present, many remote areas in China are still relatively conservative, and the elderly will not be cremated and buried directly after their death. This kind of behavior is not worth advocating, because it pollutes the environment.
Now many big cities basically have special cemeteries. After the old man dies, he must be cremated before he can be placed in these cemeteries. However, it will take some time to achieve national popularization. After all, China people's thoughts are still very traditional.