I Was Just an Old Man Trying to Visit My Grandson’s Grave. Then a Young SEAL Commander Put His Hands On Me. He Asked for My Call Sign as a Joke. He Wasn’t Laughing When the Admiral Heard It. The names were a sea of black granite, polished to a mirror finish. They reflected the bright, indifferent California sun, but all I saw was the darkness they held. I was looking for just one. David ‘Salty’ Peterson. My grandson. My finger, thin and knotted with the roadmap of eighty years, traced the cold s