Michael Grant said this quote

We’re here to execute a murderer,” Zil said, pointing at Hunter. “We are bringing justice in the name of all normals.”“There’s no justice without a trial,” Astrid said.Zil grinned. He spread his hands. “We had a trial, Astrid. And this chud scum was found guilty of murdering a normal.“The penalty,” he added, “is death.”Astrid turned to face the mob. “If you do this, you’ll never forgive yourselves.”“We’re hungry,” a voice cried, and was immediately echoed by others.“You’re going to murder a boy in a church?” Astrid demanded, pointing toward the church. “A church? In God’s house?”Zil could see that those words had an effect. There were some nervous looks.“You will never wash the stain of this off your hands,” Astrid cried. “If you do this, you will never be able to forget it. What do you think your parents would say?”“There are no parents in the FAYZ. No God, either,” Zil said. “There’s just humans trying to stay alive, and freaks taking everything for themselves.