Because the right to life cannot be disposed of, voluntary is invalid; Moreover, emergency avoidance generally cannot sacrifice the lives of others.
Of course, there may be disputes in the theoretical circle of criminal law, for example, in this case, people do not have the possibility of expectation, so they are not guilty. However, the possibility of being convicted in judicial practice is still the greatest. After all, once such a case comes out, the pressure of public opinion must be great, and China's innocence rate is extremely low. Generally, acquittal is not because of legal problems, but because of evidence problems or really doing nothing.