How does the commandant come to the horrible realization of what happened to his son?

The commandant comes to the horrifying realization of what happened to his son when he discovers the truth about the conditions of the concentration camp and witnesses the brutal treatment of the prisoners. As he searches for his son, he uncovers evidence that leads him to understand the full extent of the atrocities committed there. The moment is marked by a gut-wrenching confrontation with the reality of his own complicity in the system, culminating in his overwhelming grief and despair. This tragic awakening serves as a stark commentary on the moral blindness of those in power.