If the address was involved in something fraudulent then nice job from tether, but if not then the owner should reach out to very strong agencies who are specialized in lost crypto recovery, they will do something about it ¥, they assisted me with similar situation last year. this is their contakts Watsap: +1 (360) 831-8690 Emeil: coinreclaimservice@gmail.com and their website is www.crsintell.com