Video shows the 37-year-old Enumclaw man stumbling off the platform at the Auburn Sounder Station then onto the Burlington Northern Railroad tracks to his death at 5:14 p.m. Sunday.

Exactly why, accidentally or intentionally, may never be known.

That’s because the train’s conductor, typically the one who calls in such a mishap and can give a reliable account of what happened, didn’t see what happened. Instead, a woman called Auburn Police to report she’d found a decapitated body on the tracks.

Burlington Northern shut the tracks down for several hours to conduct its investigation.

“It’s kind of a closed case,” Auburn Police Officer Dave Colglazier said Monday afternoon. “A lot of times it’s suicide, but it can be accidental. We don’t have the conductor’s version of events, so it’s not clear if he lay down or stumbled onto the tracks. Video shows him leaving the platform and going onto the tracks, but of course we can’t see what state of mind he was in.”

According to the video, Colglazier added, this doesn’t appear to be a case of foul play as the man was the only person on the platform at the time.