Can I get two Quotes for this question, After learning of Walt Mccandless's back story, was Chris's treatment of his parents justified? why/ why not

Chris's treatment of his parents never seems justified.

Children tend to be harsh judges when it comes to their parents...and this was especially true in Chris's case. More even than most teens, he tended to see things in black and white. He measured himself and those around him by an impossibly rigorous moral code." (p. 122)

...."that a kid with so much compassion could cause his parents so much pain?’” pg 103