What would you consider as 'actual evidence'? Do you believe the Warren Commission word-for-word? (If so, then I am concerned about your ability to gloss over obvious errors.)
If you take the WC with a grain of salt, what prompts you to have unshakable belief that power groups inside and outside of the US Government haven't puppet-stringed it from time to time?
Have you read credible research on these subjects? Not crackpots, those are everywhere. I mean well-researched, documented, foot-noted work.
I'm just trying to find out where you're coming from so I can suggest a Reading List for you so we can intelligently discuss this. Thanks!