If a hotel employee injured six people with a knife and was beaten to death by six people, how would this matter develop and end?

First of all, whose fault is the intentional cause of crime?

Secondly, if six people are injured in a row, necessary self-defense can be carried out, but 6- 1 is seriously beyond the scope of reciprocity.

If someone hits you with a gun, you can also take it, but if the other person takes a stick, you are not in a state of reciprocity, which is beyond the scope of self-defense and needs to bear criminal responsibility.

According to the relevant laws and regulations of our country, if justifiable defense exceeds the necessary limit and causes great damage, it shall bear criminal responsibility, but the punishment shall be mitigated or exempted.