From the Friday Vault

Did Abraham Zapruder make what is arguably the most important film of the twentieth century? Thanks to his steady hand, and the steadying influence of his loyal secretary, Marilyn Sitzman, who spotted her vertigo-disabled boss atop a four-foot-high cement pedestal on the Grassy Knoll in Dealey Plaza, posterity has been given a front row seat to the assassination of President John F. Kennedy.