I had the opportunity to visit the JFK memorial in Dallas over Thanksgiving 2009 and it was quite an emotional experience given the fact I was 13 years old when the assassination occurred.
What was quite evident to me was the distance from the sixth floor of the depository to the motorcade was not far (less than 200 feet) and clearly within the means of a person with average shooting skills.
I do not think it was the Mob because they generally use highly skilled assassins, weapons that cannot be traced and have a planned escape route.
I find it hard to believe Oswald could have missed the first shot – he was under no duress at that point and could take his time to aim and fire. According to the Warren Report the first bullet missed the car totally and hit the curb wounding several people. Oswald was then able with elevated adrenalin and nerves recover from this horrible initial shot and then fire two more shots striking the President?
Cyril Wecht, famous forensic pathologist, suggests “Without consideration of the question of whether the damage to the President’s head was the consequence of a strike by one or two bullets, it can be said with a reasonable degree of certainty that in no instance are any of the head wounds associable with full-jacketed military ammunition of the type attributed to Oswald and strongly suggests that some type of sporting ammunition struck the head.“
I personally believe Oswald was a patsy to take the fall and there was backup at the grassy knoll. The fatal shot came from that area. Oswald may have hit the president one time in the back.