Mc is indeed a bad son

I kind of don't get this. I feel like he use revenge as his goal, like I'm just saying because in the first chapter he was already planning to go against his father by doing in the law way until his mother died that he decide to do things his way. Also, i don't get why kill his mother, although I know they don't act as family. I think mc is indeed a psychopath, because psychopath does have emotional but like they're crazy at the same time too. Idk how to explain, but yeah. But I think this is a good read to those who like to read criminal gang and stuff.