what part does trust humility and shame play in the introduction?

yes

A flashback explains to us how Cole got to Alaska in the first place. A native of Minnesota, he had been in the juvenile justice system for quite some time, and his wealthy and well-connected parents usually would get him out of trouble with the law. We see that this time Cole is in real trouble for beating up a boy named Peter Driscal. Cole is full of anger and lacks humility. Cole experiences severe bouts of anger throughout the novel. He is initially portrayed as a very angry person and takes much time to finally realize how to fix that problem.