Thank you, that sums up a small part of the story very well.
One thing I've learned is that the conspiracy folks lie and frequently take statements out of context. I insist on primary sources. There is so much BS out there in favor of a conspiracy that it's almost hopeless to counter it all. Bugliosi basically does, but it's a shame that few people will read his book.
Another bit of compelling evidence that the president was shot from behind (BTW, ALL of the ballistic trajectories match perfectly with the Oswald window of the school book depository), is this stabilized zapruder film: