How does Stevenson prove the justice systems lack of mercy in chapters 7€“8 of Just Mercy?

In chapter
7, Stevenson seeks a direct appeal of Walter McMillian's criminal conviction. He writes a brief
in support of the appeal, highlighting the injustices (or "lack of mercy") that
McMillian faced at the trial level. These injustices include unreliable witness testimony
against him, racial bias in the jury selection, prosecutor misconduct, and the judge's override
of the jury's life sentence verdict that resulted in McMillian receiving the death penalty. In
this chapter, the judge also embodies a lack of mercy in the criminal justice system when he
denies McMillian's appeal. In denying the appeal, the judge accepts the prosecutor'sof
McMillian's conviction and sentence as "routine" and "appropriately
imposed." Rather than see the specific due process and constitutional violations that
McMillian faced at the trial level, the judge coldly denies the appeal, proving the lack of
mercy embodied in the criminal justice system.

The lack of mercy in the
criminal justice...