Crucifixion 1. Mark and God’s compassion on the downtrodden.
Crucifixion was designed as a public event, meant to control by fear. People were meant to be allowed up close and personal to the cross. Of all the people who show up at Jesus’ cross, the most historically certain are the soldiers. Also likely are passersby, it’s entirely plausible that Jesus would be seen by those moving about in normal activity. However, the Psalms are so evidently used as framework, and the pictured audiences so contemptuous, it seems impossible to know whether there are specific memories of events of crucifixion in John and other Gospels. It’s certainly not implausible that members of the Sanhedrin might show up, for various reasons (but the priests are more problematic–it’s Passover eve for John, and lambs must be killed).