https://www.wsj.com/articles/two-generations-of-family-run-to-remember-9-11-hero-1536621698https://www.wsj.com/articles/nation-remembers-9-11-victims-on-17th-anniversary-1536674875https://www.wsj.com/articles/new-yorks-world-trade-center-struggles-to-fill-office-space-1536663600?mod=hp_listb_pos1Claudio Papapietro for The Wall Street JournalJake Campbell, 17, at the 9/11 Memorial in New York City. Mr. Campbell lost his mother in the attacks on the Twin Towers, and, subsequently, his father and grandfather, who were both first responders.Claudio Papapietro for The Wall Street JournalJake Campbell, 17, at the 9/11 Memorial in New York City.