a secret plan by a group to do something unlawful or harmful.
"a conspiracy to destroy the government"
synonyms: plot, scheme, plan, machination, ploy, trick, ruse, subterfuge; informal: racket
"a conspiracy to manipulate the results"
the action of plotting or conspiring.
"they were cleared of conspiracy to pervert the course of justice"
synonyms: plotting, collusion, intrigue, connivance, machination, collaboration; treason
"conspiracy to commit murder"

It comes from the latin roots con (together) +spire (breathe)
as with inspire, respiration

"Conspiracy theorist" comes from the idea that more than one person was involved in the plot to kill President Kennedy.
The term has been given a negative connotation, to shut down debate, and try to discourage people from investigating.

E. Howard Hunt's deathbed confession reveals JFK killers, with LBJ at the top of the Chain of Command.






Cord Meyer




David Morales


Billy Harvey



French Gun man
Grassy Knoll
Lucien Sarti