It was most likely space junk. There is so much space junk up there, ranging from paint specks to defunct satelites, that most modern space missions involve co-ordinating with the movements of 'detectable' space junk, to avoid collisions in orbit. Even so, the space shuttle re-aligns itself to put its underside and wings, or even tail section, in the way of extra-vehicular astronaughts to protect them from undetected debris.
Whilst at least one of the falling stars you saw may have been a meteor, it was most likely a collection of space junk re-entering Earth's orbit.
Unless debris from the tail of an asteroid was deflected either by another mass, or by some other form of shear forces, and then sucked back inward to the same rough point, then it is unlikely that the meteors came from the same source.
Generally, all the meteors from something like the leonid showers would have roughly the same trajectory per 'shower'.