You praise a murderer?
Think of it as a reverse abortion. Child kills parents.
Murderer yes, but the available evidence indicates he was truly repentant for his sin. He went on to raise two sets of kids into respectable citizens and never raised his hand to anyone else.
I find myself much less harsh on those who sin and then spend the rest of their life trying to atone for their offense. As opposed to those who never admit they sinned in the first place.