Would I show pity?

Would i show pity to a dying nazi? A man responsible for the killings of innocent jewish men and woman and he ask for forgiveness those he murdered. Its hard to say but i would show pity for the man. My mom always told me if you cant forgive others for the wrong they done how could any one forgive you? Think about it if you saw the nazi man dying and walked away from his last request would you really feel better about yourself? If you ask me i would show forgiveness and pity i may not like it the words might taste like vinegar but i would say I forgive you.