"When the shots were fired, photos show a lone man with an umbrella open on the grass by the limo. His umbrella was open and he was standing. Everyone around him are laying on the ground. Photos show that as the car neared him he opened the umbrella, that is when the shots were fired. It is not that hard. You have 1 shooter and 1 spotter. They have never been able to locate this "umbrella man" to speak to him."
You're wrong. His name is Louis Steven Witt, and he was interviewed within days of the shooting. He said he was protesting JFK by aping Chamberlain.
I have never seen anything that indicates what you have said to be true.
Read Six Seconds in Dallas.