New Data Unfolds in `Who Killed JFK?' he obvious problem with so Of course, for those more prone T many films, movies and docu- to tune in CBS than PBS, some mentary investigations of the Ken- this will be startling. Oswald's nedy assassination coming at us mother, Marguerite, is filmed lying this week is that the valuable stuff that son Lee wasn't found to be gets lost in the avalanche. And the emotionally disturbed. Rether's problem with missing the good claim that CBS has proceeded with work is that it is only in the past its own investigation since i9Ki is year that a truly meaningful inves- supported with fascinating tests. tigation of the epochal crime has including showing marksmen hit- been possible. ting a target simulation of the Like "Frontline's" eventful re- moving limo. port Tuesday, "Who Was Lee Har- CBS' report shows some class 1):) vey Oswald?," CBS' "Who Killed not mentioning that its weekend- JFK? The Final Chapter" (at 9 long, commercial-free broadcast of tonight on Channels 2 and 8) Kennedy's state funeral and burial benefits from new access to KGB marked a historic turning point in files and authorities, recently re. TV news journalism and for CBS in leased documents and a variety of particular. It will come in for articulate viewpoints--dominated strong criticism, howevel • in offer- by Gerald Posner, whose new book ing the impression that all of the debunking all conspiracy theories key assassination conspiracy theo- "Case Closed," is all the rage. ries—was it the Mafia? the CIA? Indeed, instead of J.F.K. week. the Cubans? the Soviets?—arc this is really Gerald Posner weak. quickly dismissible. This is appar- and Posner really has the ear ently Posner's influence, but the host Dan Rather. It's too bad 1.7_ unanswered questions, especially CBS, though, that "Frontline" heal those regarding Mafia Lies to both Oswald and his killer, Jack Ruby. them to the story ce,, several days—as well as the same r-0leli: are simply ignored here. sion, that there is no hard evidence Still, there is something deeply affecting about walciling Walter to support anything other than in:- Oswald acted alone. A for of Ore Cronkite nearly cry on catnera ar he recalls the weei.. who figure prominente, , events. He feels the social earthquake, the "Frontline" study, sum 1; and insightful jouinalie; loss, to this day. Journalists are McMillan. repeat then eieee. lee humans, after all. Rather.