Shawn Stark, who witnessed the accident from a nearby Little League basketball game, told Fox40.com: "When the train was on the other side of the trestle, it was going 'beep beep'.
"But when it got closer, it just laid on the horn. The horn didn't stop. It must have been 30 seconds long. Then, they finally turned around, he pushed her, and he went under and she hit the corner of the train."
Ms Friend's sister Alithya, told KCRA.com: 'It's her first boyfriend and her first love. And she just got it taken away from her in an instant.'
On Sunday, hundreds of people gathered at Earle Yorton Little League Park for a candlelit vigil in memory Mr Moore.
Marysville Police Chief David Baker said an investigation into why the pair did not see, hear or feel the vibrations of the slow-moving train is on-going.
"We just don't know," he said.
"We don't know what distractions had been in place. We just have no information on that at this point in time."
- UK Independent