Remember, Oswald never claimed to be by the motorcade
He said he was in the first floor watch room getting lunch. And then he went to the second floor and got a Coke from the machine and came back down.
He also claimed to go outside and talk to people who work at the book depository. Two two people who work at the book depository. Both of them say he never talked to them at that time.
So he never gave the alibi of..I was on the street by the motorcade watching the motorcade.
Remember, Oswald never claimed to be by the motorcade
He said he was in the first floor watch room getting lunch. And then he went to the second floor and got a Coke from the machine and came back down.
He also claimed to go outside and talk to people who work at the book depository. Two two people who work at the book depository. Both of them say he never talked to them at that time.
So he never gave the alibi of..I was on the street by the motorcade watching the motorcade.
See this footage of the assassination
https://www.jfk.org/collections-archive/nix-home-movie-2/
See how small the people are.