I've looked at the JFK assassination extensively.
I'm not going to make a large post that touches on many issues here now [Edit: ok, I wrote mre than I'd planned, but it's all relative], but my opinions on some big topics are:
- I think it's likely Oswald acted alone in the shooting itself. There are some loose ends about the railway area behind the grassy gnoll, but I lean towards only Oswald.
- The real question of conspiracy is more whether Oswald had people who were getting him to do this. He had a lot of 'false flag' activities, connections to government people (his close friend was an older CIA handler, his pro-Cuba office located with an extreme right-wing former FBI figure, etc.).
- One possibly important issue is Oswald working at the building overseeing the route. He'd been referred to the work by his landlord, Ruth Paine, which sounds very innocent - but it seems she knew intelligince people too, who were the source of the info. But it, like most things on this, is inconclusive.
- There are reports of other assassination efforts, including one prevented only weeks before this one.
- There isn't really a question whether there was a government coverup; there was. The question is, was it for things like uncovering the then-secret government activities such as dozens of attempts to assassinate Castro, working with the Mafia and other activities (many thousands of terrorist/sabotage acts in Cuba that would embarrass the US), or the assassination?
There are all kinds of remarkable specifics to mention, from Oswald's alleged trip to the Cuban embassy in Mexico, to Castro - who was knwledgable about the assassination attempts - saying weeks before the assassination that those leaders who try to kill others, are at risk of becoming the target, but I'll mention just one mystery:
Nixon faced the loss of his presidency if not criminal charges over his Watergate coverup. The plan he decided on was to get the CIA to tell the FBI not to investigate on national security grounds. He didn't control the FBI enough to give them the corrupt order, so how would he get the CIA to do it?
With such an important issue, he sent a messenger with a single message to CIA leadership the messenger did not understand, telling them to say this if the CIA was refusing to cooperate, to twist their arm: he said 'tell them to remember the bay of pigs. They'll know what it means.' (I paraphrase).
Now, this seems confusing - but Nixon's own extremely loyal chief of staff, H. R. Haldeman, explained in his diary he published: Nixon used code words for some sensitive topics, and "bay of pigs" - which would seem to have no relevance to the CIA during Watergate - Haldeman says was his code word for 'JFK assassination'.
So we had the president attemting to order the CIA to do something corrupt it probably did not want to, and to force them, his one blackmail was a vague reference to the JFK assassination, impying a threat to expose something that he and the CIA leadership knew about that the CIA would not want exposed.
This can be verified, as I verified it, in Haldeman's book.
If people have specific questions they can send them to me, some things have been resolved. For example, as JFK's car approached where he was shot, a man on the sidewalk opened a big black umbrella - on a sunny day. Beyon the question whether it happened, many suspected this was an activitiy somehow signalling the shooter or shooters. It was bizarre.
But the man was found many years later, and it turns out, it's innocent. He was making a 'political statement' - he was checked out.
As to the people who say 'who cares who shot him', I'm just disgusted. One way or the other, it's a very important question. Especially if there was any group backing the assassination, there is much to learn: the situation with the mafia, the situation with rogue intelligence operations, and more - and even if not, many activities uncovered by looking into Oswald. There were a lot of suspects who would want to assassinate JFK even if they weren't actually involved.
And it's also possible there were additional assassination efforts, even if Oswald acted alone.
Oswald may have been a 'lone nut' - even whatever his involvement with goverment figures, even if his 'defection' to the USSR was government-sponsored. Things like Ruby's jailhouse statement to, IIRC, Earl Warren and - yes - Gerald Ford that he 'couldn't tell the truth while in that jail. but there was a lot to tell he would if they moved him to a safer location', as suspicious as it is, may have been false.
But understanding the US infiltration of the USSR - from sending 'defectors' to the risky sending of planes into their airspace to trigger nuclear alert systems to better be able to launch a first nuclear strike; the covert activities of the CIA in Latin America, including the work with the mafia; some domestic intellegence operations, and more are all important issues exposed when the assassination is looked into, conspiracy or not.
If there *were* a rogue intelligence backing of the assasination - possibly involving assassination conspirators who worked for or with the government on the massive Cuban operations (terrorism/sabotage in Cuba was the largest US intelligence operation at the time, with thousands of people) - there are important things to learn about the dangers of a rogue intelligence operation, depending who was involved.
There were some in the CIA and military who make the 'Obama wants to destroy America' crowd look tame, at the height of the cold war, as there were great tensions between JFK and these organizations (recall his statement he wanted to 'cut the CIA into a thousand pieces and throw them in the wind' and planned a major redesign of the intelligence agencies in a second term, and his creation of the DIA (Defense Intelligence Agency) in part to get around the existing miitary leaders he had problems with.)
Were Oswald's claims he was a 'patsy' set up in an operation, were his movements to go to a movie theatre possibly as part of some 'plan' to meet an escape team that never showed up, anything other than desparate lies by a lone nut? Was his interrogation for many hours not being recorded innocent negligenece? There are all kinds of unanswered questions.