Some did say they saw gun smoke and most likely were lying, but many ran to the knoll and you can see it on film.
No one has disputed that some people did run to the Grassy Knoll. The footage clearly shows Officer Haygood running up the hill after the shots were fired. Haygood's own statement is that he ran up to where another officer was in order to talk to him to see if he had any idea of what had just happened.Some folks in the crowd see this and run after him. Other people see this and they start to run up as well. It's a natural "follow the leader" response.
The point is that no one ran up in response to shots being fired,they ran up so they wouldn't miss anything in case the cop had found something or someone.
What is often left out is that a lot of people didn't run to the Knoll.
