Short version, I might get things fuzzy:
Candace alleges Charlie Kirk was starting to have second thoughts about supporting Israel (based on text messages). Israel was allegedly mad at this and masterminded a plot to kill Charlie using a patsy named Tyler Robinson, in a public way, to send a message while also coming out and saying "We didn't do this" immediately. In the aftermath, TPUSA has inconsistencies in their story that Candace believes incriminates them in the conspiracy. The rest of it is basic conspiracy theory stuff, pointing to various facts and insinuating that they are connected to the greater conspiracy, no matter what the facts end up being. Prior to this, Candace was calling Brigitte Macron a tranny and refused to stop saying it. This too has been wrapped up in her conspiracy, as she got "credible evidence" that France/Macron was trying to assassinate her for calling Macron a tranny at the same time TPUSA was trying to get her to speak at an event. She now believes TPUSA is working with France for this assassination, further incriminating TPUSA in the assassination of Charlie.
Like most conspiracies, there are a lot of facts that seem weird (such as the Egyptian plane following the Kirks for months) that are wrapped up in the conspiracy because "it HAS to be connected".