I agree, they should not. Neither should the children of the woman he's killed, but they do. And neither should I have to pay his debt, yet I must help to pay for his incarceration as well as for those children, and probably for his children. Yet I don't know any of them and had nothing to do with the circumstances which caused the whole mess. Where's the justice in that?
There are charitable organizations and religious organizations which claim to help those in need, and those who feel the need can donate to those organizations. Let these groups handle the needs of those children.