I say photoshop job. A pretty good one; but it doesn't bear close scrutiny IMO.
The shots of the aircraft on the ground are genuine - possiblt the result of a taxi accident or some other collision perhaps? At any rate; the stump of the wing is clearly visible - doesn't look like there's much there, but the F15's a bloody big fighter - there's approximately 3 feet of twisted metal there.
The
flying shots however show a clean nacelle - there is no stump visible at all in any of the shots and in three of the four - particularly the first damaged flight shot in which the ship is seen from the underside with vapour streaming from the fuselage - it would be clearly visible.
Finally; the telling point: looking at an extreme closeup of that shot; there's a definite change in the background pixellation of the image. The forger used his grapgics program's clone tool to clone in sky around that area - the outline of the removed wing is visible.
The altered pixellation is visible in the other shots as well; though not as clear.
Too bad - it was a good story.
That said; whoever doctored the images
did do a pretty good job for what he wanted - making up a good story for the Internet folks. Doesn't hold up under detailed study; but still cool nevertheless.

Edit: another point. The vapour coming off that wing is supposedly fuel. However; it's coming off the very front of the nacelle; at the intake. IOW; it's contrail; not fuel vapour.