During a panel presentation today, the question was brought up of whether Don DeLillo convinced readers of his plot, or if we believe his story. I do not think that The theory DeLillo is the definitive answer to what led to the JFK assassination, but I do think that DeLillo was very successful in what he was trying to get across with Libra. This is that the events in question can never be fully understood. There will never be one story whose truth everyone agrees upon, that answers all of the questions brought up by the information known about the assassination. DeLillo has completely convinced me that JFK's assassination can never be understood without doubt.
The most striking aspect of Libra in my opinion was Raymo. Not him as a character, but the fact that he existed in the first place. I am not saying that I think that someone named Raymo shot JFK from the grassy embankment, but it is very plausible that someone very similar to him did (maybe not named Raymo). We have a lot of facts about this assassination, but no one has ever found out if "Raymo" ever existed. Just as Raymo did in the story, Raymo's factual counterpart may well have shot Kennedy and then completely dropped out of history. Some random schoolteacher in Wyoming have have been Raymo.
This is one level of possibilities that we don't know which DeLillo reveals, but he goes further. Branch, who knows way more than anyone now (other than the CSI, if someone like Branch actually exists), and even buried in facts as he is, he still does not understand what exactly led to the assassination. Sure, he tells a convincing story, but there are some very flimsy parts. This has been discussed in class multiple times. The fact that there are other forces not understood by anyone who's point of view DeLillo shows. These may be random coincidences, as Ferrie suggests, but they may also be a bigger conspiracy of which Branch is unaware. This seems very likely to me, given that Ferrie's coincidence theory has been proven wrong before. He sees Lee's entry into Bannister's office as pure coincidence, when really Lee was told to go there by a government agent who wants him to be an informant. It seems to me that similar explanations could be possible for the other events which Ferrie considers pure coincidence. Branch too does not know everything. Or if he does, he is not telling us about it (because he is part of a conspiracy?). For example, he gives no explanation for why JFK takes the route through Dallas that he does, passing under Lee's window conveniently during his lunch break. Is this a coincidence, or are the people in the government who want Lee to shoot JFK? It is never shown whether this and other things are coincidences or parts of an even bigger plot, but that does not matter. What is being shown is that we cannot know. Even Branch, who is figuratively drowning in information, does not know everything about Lee's life, and why he shot JFK. This is a whole new level to which DeLillo takes the doubt.
First of all, readers cannot be sure of whether someone like Raymo exists, for example. That is a very big question that may never be answered. Secondly, even the supposedly all-knowing fictional character in DeLillo's fictional novel does not know what is going on. DeLillo could have made up facts and explanations for Branch to tell us, but he doesn't. He gives Branch doubt. This just takes the doubt one step higher, beyond even the doubts that normal people might have. Since our uncertainty has already been elevated to unprecedented heights, it seems likely to me that there are completely new things to bring doubt into the JFK assassination that I cannot even imagine. I think that new levels of uncertainty will be uncovered for as long as people are investigating this event. The more someone finds out, the more they will see that they cannot know. I think that DeLillo is implying through his use of Raymo and Branch is that this will never end. Even if the JFK assassination was researched until infinity, a definitive explanation would never be found.