This isn't a JFK & UFOs thread. The Google search you mention must rely solely on the last chapter of my 2009 book Matrix for Assassination. There isn't anywhere else I've written, other than in response in a couple of posts in a 2010 JFK Lancer thread, about that topic. Now your Google search has 1,141 results.
To answer your questions:
1) Do you deny linking the JFK assassination with ufos in any of your books? No.
2) Do you believe the government is covering up the truth about the existence of aliens from outer space visiting the earth? Yes, they have covered up most of it.
3) What do you believe is the connection between the JFK assassination and ufos? My belief is that President Kennedy was proceeding to eventually declassify some of the "above top secret" Tesla electromagnetics technology so that humankind could derive some benefit. That process involved disclosing that the military had "back-engineered" some technology from retrieved spacecraft. This was one of many reasons to eliminate him.
That's all I will discuss as regards "JFK & UFOs" in this thread. You should start a thread about that, if that's what you want to talk about.
If you go to my website jfkinsidejob.com you will see a PHYSICS article I put together in 1996 which covers new designs I created for graphing the elements, isotopes & subatomic particles. I was awarded US Patent D396,060 for my design of the elements.
You will also find a dozen or so ESSAYS about the Texas School Book Depository, which has been the focal point of my JFK research since 2009. "A Candle Burned on the Table" is a short one and might be a good place to start. I have 35+ years in the trades and that has given me a lot of common sense about buildings.
Until you respond to the subject of this thread, or to one of those essays, I have nothing to discuss with you. I will not be responding to anything that you or anyone else posts about JFK & UFOs.