Kill Him!

"Fine, I let you go since I don't want those pests from White Crown finding trouble with me after your death, but only after you let me use 'Soul Search' on you!" 

Gordon wore an ambiguous smile as he stated his condition. 

'After soul search, you'll be turned into a retard, so I naturally let you go and let you live a life worse than death, this will be your punishment of destroying my cultivation clone.' Gordon thought maliciously without showing it on his face. 

Soul search was a special technique of investigation that anyone could use after reaching Qi Soul or Soul Embryo realm. This technique can forcibly extract memories of another, whether or not others like it. 

But this force extraction of memories can cause massive damage to others' minds and as a result, the victim would become either retard or even die an agonized death.