“I saw the barrel of the gun pointed at my friend,” said Dorian Johnson, 22. “Then I saw the fire come out of the barrel.”
Here he says he saw the "barrel" which focuses the eye on the barrel. The "fire" then is also what is seen, from the barrel. This statement is strong.
“I could see so vividly what was going on because I was so close",
Here we have the need to justify his vision, as a weak assertion.
On the video, the first witness gives statements that will likely be used by the defense as he employs passive language ("door") and reports what "we" said, and not what he said. Always note when someone reports in an open statement what did not happen and what was not said.
A truthful subject should tell us what happened and what was said.