Did The Stranger act because to him nothing matters or was he just lazy, irresponsible and pleasure seeking.

We learn early on in part one that he had kind of given up on any ambition in life. He says, when offered a promotion, to himself. "As a student I'd had plenty of ambition of the kind he meant. But, when I had to drop my studies, I pretty soon realized all that was pretty futile" He falls in with a pimp and doesn't seem to make any decisions that are not pleasure based. He witnesses a beating of a prostitute and just goes along with supporting the pimp who gives him some play and conversation. Maybe he is just morally lazy. When his defense lawyer visits him he says "I wish he had stayed longer and I could have explained I desired his sympathy, not for him to make a better job of my defense. ... Once or twice I had a mind to assure him that I was just like everybody else; quite an ordinary person. But really that would have served no great purpose, and I let it go - out of laziness as much as anything else. He just wants to be liked without any regard to character.

On the day of the shooting you can tell he is put off by the fight without the strength to examine the moral implications that the victim was defending someone beat up. A stark lack of empathy. He is put out as he says and cant make the effort to face the women. "I couldn't face the effort needed to go up the steps and make myself amiable to the women." Then he sets out on his walk on the beach. "Whenever a blade of vivid light shot upward from a bit of shell or broken glass lying on the sand, my jaws set hard. I wasn't going to be beaten" His ID worked fine. These Arabs crashed his party and he was in a bad mood. And he shot one. There was no premeditation but most of the way he was characterized at his trial seems fairly fair to me.

Does a belief that nothing matters permit moral laziness?