Now... i'm not saying to take revenge, but if it was me i would NOT plant a new plant, i would NOT spray it with a HUGE ammout of synthetic cannabinoids, and then i would certainly NOT find a way to get him to figgure out there's another plant for him to steal, and then i certainly would NOT grab is unconscious body and drag it to remote location where then i would OBVIOUSLY NOT use certain methods to extract the information of where my shit at.
But hey, that's just what i would NOT do.
But you do you, just don't give up on yourself, and remember, never trust anyone besides yourself and your closest family members, and even the latter must be only in certain situation because some families also can't be trusted.
I feel for you brother, lots of strenght and get thru it, it may have had a high cost but now that person ain't fooling you no more, now you got the truth.
Wish you the best of luck and hope you can stay lit my guy.