Regarding the case of Shen Yuan accidentally killing Sun Cainan, the trial was unprecedentedly swift and decisive. First, Sun Tianzheng wrote a letter to the imperial court asking Shen Yuan to pay with his life. If the emperor objected, he would retire from his position and go back to his hometown. He actually threatened Emperor Wen Hui.
Compared to Shen Gui, the Minister of Official Personnel Affairs was obviously more important. Sun Tianzheng had been in his position for many years. If he was replaced all of a sudden, it would probably cause a lot of unnecessary trouble. Emperor Wen Hui naturally had to comfort Sun Tianzheng.
What was surprising was Shen Gui's attitude. Shen Gui knelt in front of Emperor Wen Hui and wailed with snot and tears, saying that he had not taught his son well and was willing to put righteousness before family and make Shen Yuan pay with his life.