saw a red light in a sentence

1. "Mr . Han saw a red light and altered his ship's course to avoid it, but he should have taken more safety measures, " police investigator Son Jae-seo said.
2. "I don't think Justin knew what was happening, " Stegner said . " I imagine that Larry Ashbrook came in through the doors, looked around in all that dark and saw a red light on a camera and knew somebody was there ."
3. It's difficult to find saw a red light in a sentence.