Are you serious!?!?!? How is one man walking on the street beside the car (a wide-open convertible) ever going to keep JFK from being shot? And, did the shot even come from the direction where he had been walking? Does he have an iron umbrella he was holding 4 inches above JFK's head?
Truly.... instead of just emotionally reacting all the time, THINK a little when you read all this fantasy you seem drawn to.
Willie I like intelligent discourse but not when it devolves into a sharpened tongue shooting disrespectful arrows into another. I've met a lot of Christians on here and you can almost perceive the condition of one's heart by their posts. You shoot barbs sometimes and I don't appreciate it. Joking, ribbing I can handle, but I don't like disrespect. I don't disrespect you and I don't expect any less. Keep it civil.
Doesn't it strike you as odd that Emory Roberts called the agents away from their positions on the sides of the President? Didn't you see the quizzical motions of Henry Rybka? At a time when security should be high - driving amongst the public, out of nowhere one agent orders the other agents to move out of position. It doesn't make sense; unless there is a reason for it.
Yes a shot was fired from the book repository but it's also been speculated that there was another shooter - either on the grassy knoll or from behind in the motorcade:
John F. Kennedy assassination: Did the Secret Service agent do it?
Here is an overview:

Financial Armageddon
While many are familiar with the Zapruder film, the footage below is less well known. It shows the Secret Service agent nearest to JFK apparently being told to stand down moments before Kennedy’s assassination in Dealey Plaza 50 years ago today.
The clip appears to show Secret Service agent Emory Roberts standing up and ordering Donald Lawton and Clint Hill, the two Secret Service bodyguards on either side of the presidential vehicle, to stand down, therefore preventing them from doing their job as human shields to the president.
The instruction appears to cause confusion inside the follow up car and most noticeably with Lawton himself, who seems perplexed that he has been called off the vehicle.
Analysis suggests that the absence of the bodyguards ensured that whoever was firing at Kennedy was not obstructed and had a clear shot. During a visit to Tampa four days earlier, Lawton was pictured riding on the right rear bumper of the limousine.
During an October 2013 C-Span interview (28:50), Clint Hill, the Secret Service agent seen on the left hand side of JFK’s car (and the one who subsequently ran after the car and reached out to Jackie Kennedy), claimed that Donald Lawton was actually just going off-duty to eat his lunch, and that he told the other agents, “OK you guys, I am going to lunch, have a good trip.”
This explanation hardly seems plausible given the nature of the situation in addition to Lawton’s body language. He clearly shrugs his shoulders and outstretches his arms three times as if baffled at something and asking for answers.
Secret Service agents claimed that it was Kennedy himself who had given an order four days earlier to call off the bodyguards because he wanted to be more accessible to the people, describing the Secret Service agents as “Ivy League Charlatans”.
However, Congressman Sam Gibbons, who often rode alongside Kennedy, stated, “I rode with Kennedy every time he rode. I heard no such order.”
JFK Assassination Conspiracy. The Secret Service Stand Down Order. Was This Pre-Planned? | From the Trenches World Report
~~~
“The function of PROPAGANDA is not to make an objective study
of the truth…it must confine itself to a few points and
repeat those points over and over…only after the simplest
ideas are repeated thousands of times will the masses finally
remember them and accept them as the TRUTH. It is not truth
that matters, but VICTORY.”
Adolf Hitler
“But nobody reads. Don’t believe that people read in this country…”
There will be few professors that will read the record. The
public will read very little.”
alleged statement of CIA Director Allen Dulles
Here is another treatise on the topic. We have to read with discernment, and exercise discernment. There are too many irregularities.
Secret Service Complicity in the Assassination of JFK.