Mitigation happens at the level of the understanding and will of the person  .  
It's called sufficient reflection and full consent of the will  .  
When Bernard Nathanson wrote "Aborting America "  he said that he came to the realization that abortion was something he could no longer do  .  Although previously he thought he was helping by performing them  .
We are therefore not to judge one another since we can't know those pivotal two elements .