Why should Jesus not be able to save them? He has more power than any of their sins. You see, those same people would have no problem seeing Nero, Hitler or Herod in Heaven if they repented at their deathbead. So why would they be so opposed to them being saved in the context of UR? Its not logical. Plus, if those people who were harmed by those men are restored as if their misery never happened, whats the purpose of revenging those people who caused the harm? And yes, those people may have to learn some tough lessons for their actions. So if they have their wrongs corrected, and the people who were harmed recovered as if never harmed, then Justice has been served. You could make a case that Justice could be served by annihilating the wrongdoer, in the case they did not want to repent. However thats saying God cant get what he wants. Think about it this way. Would torturing Hitler bring all those Jews back to life killed in the Holocaust, or relieve the psychological scarring the Jewish Victims suffered from the concentration camps? Would torturing Charles Mansen ressurect those people he killed? Would Torturing Bin Laden rebuild the World Trade Center, ressurect those who died as a result of the terrorist attacks, or undo the grief of those who lost family or friends in the attacks? So in this time, we can only imprison these dangerous criminals or execute them, only to save others. But Jesus is more powerful, and can restore what we cant, and even humans know that meaningless torture solves nothing, and is just more cruelty. And unfortunately people do have a weakness to seek revenge.