If it's certain that Li Changshan did these things to the children, then without a doubt, the person who poisoned Li Changqing twenty years ago must have been Li Changshan as well.
However, Li Changshan poisoned Li Changqing twenty years ago for the position of Patriarch of the Li Family. But, twenty years later, he's come to Shenchuan City to eliminate these children — for what reason? Could it be that he's doing it to deal with Ye Qing? Yet, dealing with Ye Qing, what benefit does it bring him? Ye Qing not only poses no threat to his Li Family in Shenchuan City but can even help elevate the Li Family's reputation. He's still the head of the Li Family and can use Ye Qing's name to expand the family's prestige; it's completely beneficial for him. In this situation, why would he still want to deal with Ye Qing?
