Who knows? People get others to do batsh!t crazy things all the time. And I’m sure it was done through intermediaries.
One thing for sure: LBJ absolutely hated Kennedy and had the most to gain from his assassination.
But there's no evidence of that. Empty speculation is just that. It doesn't take into account that this is the most investigated case in the world and we know practically everyone Oswald talked to and everything he did. There are simply no ties to LBJ.
"One thing for sure: LBJ absolutely hated Kennedy and had the most to gain from his assassination."
Many people had things to gain and many had things to lose. Again, that's not evidence that any of them did anything.
People talk about this as if it were some kind of guessing game. It's not. We know what happened. It's been investigated to death.