Why wouldn the Kennedy family–having both wealth and political influence–have acted more aggressively had they suspected (which they apparently did not) that the assassination of President John F. Kennedy was part of a larger conspiracy?
I remember that in the latter Sixties Bobby Kennedy often submitted to no-conditions interviews and discussions. But whenever anyone started to mention the assassination he’d politely but definitively say, “I’m not talking about that,” and in public he never did. I never heard of anyone pursuing the issue with him past that point. I’m not sure it’s so clear that the family’s wealth or influence was sufficient to bring the killer(s) to justice. Certainly they privately pursued an answer to the mystery and it’s not unlikely that they found an answer. That would suggest that the genesis of the assassination was either (1) from a source powerful enough to force the Kennedys to back down or (2) from a source the exposure of which would be more destabilizing than the assassination itself. Or both. The only other possibility seems to be that it was a single gunman acting on his own initiative. There is no credible evidence that would support that notion, not even in the Warren Commission repo