When a brute punches a guy in the face - it is a crime against the person (civil) and against society (criminal). Society has a right to punish the brute for this bad behavior. As such, these crimes are almost always prosecuted criminally (by the community rather than the individual).
I am glad Klee got his money back. But as a member of the bitcoin community, I insist that we find this crook and punish him. Klee can't unilaterally set him free (in exchange for money) to commit more crimes on the community later. The crime is done and we should find and prosecute the asshole. By Klee letting him go free, we all suffer when the next attack comes.
I invite others to join in a continue the search despite Klee's bargain with the crook to not pursue him. Let's find this dick and bring to him that what he deserves.