It makes no difference whether you hire a lawyer or not, because you don't want to get compensation at all. However, the compensation in civil litigation should be carried out in accordance with the Interpretation of the Supreme People's Court on Several Issues Concerning the Application of Laws in the Trial of Personal Injury Compensation Cases, which should not be too high and cannot be supported by the court.
As you can imagine, he is on death row. What can he do to compensate you for your loss?