https://www.japantimes.co.jp/news/2018/10/01/asia-pacific/u-s-sends-warship-near-man-made-islets-south-china-seas-spratly-chain/#.W7HFNDWZ0Wo
U.S. sends warship near man-made islets in South China Sea’s Spratly chain
Do you mean Anthony Romero? It appears he was invited to the Martha's Vineyard trip where the pizza-related map was left behind but he had a cold.
https://wikileaks.org/podesta-emails/emailid/54496