By Jenni Carlson Columnist jcarlson@oklahoman.comHooper Stover wasn't sure he should write the letter much less send it. He desperately wanted the Thunder to sign Russell Westbrook to a contract extension — the 11-year-old couldn't stand to see his favorite team lose another superstar — and as the summer rolled on with no deal done, he fretted.Read more on NewsOK.com