(TMZ) — Bravo star and fitness instructor Greg Plitt did NOT die from stumbling on a railroad track Saturday ... he was fatally struck by a train after trying to outrun it ... to prove the effectiveness of an energy drink.
Law enforcement sources tell TMZ ... they have reviewed video of the accident and it shows Plitt standing on the tracks as the train barrels toward him. Shortly before the train reaches Plitt he assumes a runners stance and bolts down the track.
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The video shows the train closes in on Plitt as he races at breakneck speed, but he loses the battle and the train "clips" him ... throwing him off the track to his death. It happens quickly and after getting struck he disappears from the video.