Raskolnikov killed the old woman who was lending usurers.
Raskolnikov pleaded bitterly with the police to quickly carry the unconscious Marmeladov (who had only met once in the tavern) home as if he had trampled on his biological father.
Killing people yesterday and saving people today is not simply evil or good, and people are multi-faceted.
If yesterday's killing was for money, then what is the purpose of saving people today? (And repeatedly stressed - I pay) is he wanting - justice, so what is justice?