Can't help but think of the parable Jesus gave on the distant vineyard owner that sent envoys to gather it's produce only to be rejected by the hired hands. Jesus hints that there were those who knew who the Son was and yet killed Him to steal away His inheritance kjv@Mark:12:1-12. Who in this crowd would He be talking about?
No one man surely could not have witnessed all of these details recorded throughout these key passages of the Passion and Crucifixion. What we are reading more likely is a collection of testimonies from several sources gathered together by Doctor Luke in this case. What the acquaintances and women saw from afar was from their lips, what the Centurion said most likely from his or someone close enough to him, what the thieves said from the same in close witness. The two Mary's and half brother James may have been close enough sources for most of this, but, not all of this. It would behoove Luke to utilize many sources. And there could have been many more than we are aware of.
2012 - pBiblx2 Field Wise Bible System Version 2.0.9d - GPL3