Markuson
SILVER Star
From what I read it sounds like maybe the e-brake didn't hold. Sounds like he turned the engine off, set the brake, and got out, and then it started rolling. Guy tried to jump back in but the vehicle threw him as it started to roll off the road.
When a bunch of us did a very rainy Black Bear a few years back, that road beyond the harsh right turn was lined with maaany trucks waiting for folks on the turn. Someone almost surely would have been smashed by that Jeep.