Hologram SJ'S Running/Dead SJ's Theory

Well, I had a 2+2 moment here and after watching all the trailers. We see a seen of piled and dead Space Jockeys when the Prometheus crew enters the temple/storage facility...later we see David watching what appears a playback of SJ's running away in fear, looking back at what ever is coming after them. Well, what ever is running after them manages to get them, perhaps not all but I am convinced the holograms David watches are the same group of Jockey's piled up against the wall thew crew wander into....the only thing we did not see, well, what was after them? Or what experiment got loose and decided to have some SJ for dinner.....or hosting....we soon shall see. Cain