Holbrooke’s career began as a TV producer working at the Today Show, CBS News, and CNN, so a story sense is intrinsic to everything he does. But it was 9/11, which came down a few blocks from his office in all its misanthropic dust, that redirected his career. That’s when Robert De Niro and his Tribeca studio tapped David to work on an anthology of 9/11 short films. That project fizzled, but not before David connected with the director Richard Linklater (“Dazed and Confused,” “Boyhood”) to produce “Live From Shiva’s Dance Floor,” a documentary that saw Linklater and the poet and tour guide Timothy “Speed” Levitch tour the ruins of the Twin Towers and cogitate on fear, destruction, and, as the title implies, renewal. Documentaries are now David’s preferred medium. His most noted works are “Hard As Nails” (2007), “The Diplomat” (about his father, Ambassador Richard Holbrooke and released in 2015) and “We Are Not Done Yet” (2018), all of which can be viewed on HBO.