The Case of Grace and Harry's Death

Harry and Grace were married on Christmas Eve 1921. On December 2nd, 1922, Harry dies of a gunshot wound to the head. There's actually two wounds. And that becomes very important, which is why I need you. Otherwise I could solve this case on my own. Just kidding. You know, I hate felistics. This is a case that's complicated and one that I know comes up throughout history.