That "jewel remover" (LOL pretty accurate description) is called a vortex generator. Basically splits the flow of air a bit so the boundary layer doesn't build to the point of choking the engine (IIRC).
And yep the tender driver was sucked in while engine was at idle. Basically what happened was he walked right in front of the intake while wearing a bulky winter Parka. He cut off most of the airflow, his parka billowed up and the engine picked him up and sucked him in.
Pretty much all that was left was a bag of bones and dried out meat. Most of the body moisture was hoovered out of him.
Pretty gruesome way to go.
Still my alltime favorite Jet, and I sure do miss being around them.
Cheers,
RTR