King Jinghe was killed unjustly.

Reason: Tathagata did not ask for any reward after helping the Jade Emperor suppress the Monkey King. However, from the fact that Tathagata began to plan to learn Buddhist scriptures after returning from heaven, we can know that what Tathagata privately wants in return is to promote Buddhism and enjoy more incense in Nanzhan Buzhou. It's natural, but it's not suitable for publicity. The gods in the sky will do it themselves, and Li Shimin, the emperor of this world, has become the best candidate for this matter.

The proud emperor of the human world really supervises this matter. The best way is to let him go through several ups and downs, and let him know that the rights of the human world are extremely weak in the face of life and death. Everything in the world has a cause and effect, and practicing Buddhism is the right way. Since then, there has been the best performer in the world to promote Buddhism, and the purpose of "sacrificing" for King Jinghe in heaven has been achieved.

Extended information: fragments of allusions about being killed in Jinghe Dragon King's dream;

"This dragon made a dogma. When I was beheaded today, although I was in front of you, I dreamed that your majesty was chasing this dragon with clouds and swords. Who knows that the dragon fled in a hurry, but I couldn't catch up at the moment. I'm anxious. Fortunately, your majesty slapped the minister, and the three cool smells made me catch up with the dragon, and a frost front in my hand chopped it down, and the dragon fell into the void. "

Tang Wang's heart was once mixed. With Wei Zhi's help, there is no reason to be unstable. Sadly, I promised to save the dragon in my dream, but I was afraid of being punished. Wei Zhi even beheaded the Dragon King with his three cool fans. Helpless, Wang Qiang in the Tang Dynasty rewarded Wei Zhi spiritually, and the crowd dispersed.

References:

Baidu Encyclopedia-Jinghe Wang Long