Yosh Golden's great aunt was killed in the Hiroshima bombing at the end of World War II. Hiroshima is very much on Golden's mind as President Barack Obama prepares to visit the city, and the 30-acre Peace Memorial Park, on Friday. Obama will be the first sitting American president to visit Hiroshima, which lost more than 100,000 people in the bombing and the aftermath that essentially ended World War II in the Pacific Theater.