Tommy wasn't a fan of their father either, but he wasn't about to take up the mantle and save an already corrupt city. Blaming themselves for what their father had done wouldn't get them anywhere. And neither would going out and killing a bunch of criminals in the name of a city that he wasn't even sure he wanted to call home anymore. There were just too many bad memories there and now he could add one more.
When his sister walked ahead he decided it was best if he left the two of them alone. Maybe whatever was meant to happen would happen to him here and then they wouldn't have to worry about him anymore. He turned for the woods. "Maybe my destiny with death will find me in there" he mumbled, loud enough for only Oliver to here.