The crime of intentional injury, causing serious injuries, is already a serious criminal responsibility. There is almost no possibility of escaping criminal legal responsibility. It is suggested to do something that can cause lighter and mitigated behavior before being arrested. First of all, you should turn yourself in, which can greatly affect sentencing; Secondly, arrange active treatment and compensation for the injured, and strive for the understanding of the victims. Understanding is also an important part of mitigating punishment.
I hope it helps you.