Good and Bad people aren't a thing.

We can not keep putting humans into boxes of good and bad. When does it get to the point that a person is bad? When does it get to a point a person is good? What if someone kills 100 kids but then solves world hunger. What do we do then. At what point do bad actions expire? If I mess up once am I now forever bad for a crime I may have commit 50 years ago even though I've changed and I've already been commended for my crimes? Shall I continued to be punished? When we put people in boxes of good or bad we give ourselves a type of complex. When a person is a "bad person", we feel as if we have to right to do whatever we want to them.We can treat them however we want to because they are "bad." What if that bad thing was done 10 years ago? Am I still right to treat said "bad person" this way? How much does one person have to do before they have completely redeemed themselves? What crimes count as too bad to redeem? There are so many moral and ethical questions that everyone answers so differently or don't even know the answer they would/think they should give. It's not fair that we prosecute someone over and over for a "crime" they have committed God knows how long ago. This complex we gain from thinking like this, making us think we can say and do whatever we want to that "bad" person, no matter how long ago it was.