Emile Janza is represented as an "animal." Do you detect any recognizable psychological problems that might explain Emile's cruelty?

It may be Emile Janza's inability to understand himself that inspires such cruelty towards others. He appears to be a truly disturbed individual - a sadist, in fact - who derives sexual pleasure from hurting other people. He is the most physically cruel person in the novel, but he is not as deliberately calculating or evil as Archie.

What's the latest dope - besides you?