There were lots of people and organizations who had motive to kill JFK, but not many who had the money to keep the witnesses silent for years afterwards. Perhaps the CIA could.
It was NOT Silver Certificates JFK had ordered to be printed, they were "United States Notes," no less Fiat Money than the Fed Fiat Money, but these were supposedly based on the Faith and Credit of the US Government and were issued by the Government. You could not exchange them for anything, but another US Note and a knowing smile they were really worthless. The real money Silver Certificates were going away no matter what. JFK was OK with that. He was just cutting out the Fed as a middle man who took a cut of the pie.
The last silver certificates were issued in 1964, shortly after Kennedy's assassination, but the legislation to end them and silver coins had already been passed and signed two years prior to that.
In 1965, the last 90% silver coins were minted.
By 1968, no more silver certificates could be redeemed for coin silver or bullion at all. They could only be exchanged for Federal Reserve Notes currency and the Federally licensed banks who got them were instructed to send them to the Treasury for destruction.
Kennedy DID order the printing of United States Notes which could be issued into circulation without being borrowed from the Federal Reserve Banks. . . which he apparently intended to substitute for Federal Reserve Notes which had to be borrowed into existence at a discount, creating a liability entry for the US Government. The US Notes Kennedy ordered were the largest printing of such notes (there had been more) ever ordered. It was an existential threat to the Fed. I think they took steps to end that threat.
Nixon finally took the US completely off the gold standard on August 15, 1971, IIRC, although some put that as late as 1973 when the Dollar became the oil standard... or even 1976 when the value of the dollar was decoupled completely from gold and allowed to float in relation to all other currencies in the world.
I mentioned the silver certificates, because I often have seen it posted that JFK was going to change to silver certificates, and that is not true.
I think we agree on that. I could find no evidence the Executive order #11110 was reversed by LBJ. That is the ExO that most people quote in regards to JFK vs Fed Reserve.
Are you talking about a different ExO ?
Regarding the gold standard, FDR deep sixed that around 1933, and then “confiscated” the gold from citizens. It was no longer possible for people/organizations to redeem currency for gold.
In 1944, the Bretton Woods agreement was established.
While Nixon’s actions did not formally abolish the existing Bretton Woods system of international financial exchange, the suspension of one of its key components effectively rendered the Bretton Woods system inoperative.
FDR took us off the Gold Standard. Breton Woods came along, and Nixon took actions which again took us off the gold standard. At least that’s the way I see it. YMMV