What verses focus on the prophecies that were fulfilled by Jesus being pierced on the cross? What are the specific versus that support the prophesy of Jesus' side being pierced on the cross?
The usual reference for what we currently have in the Biblical Canon is from Zechariah 12:10.  From the KJV, emphasis added:


  And I will pour upon the house of David, and upon the inhabitants of Jerusalem, the spirit of grace and of supplications: and they shall look upon me whom they have pierced, and they shall mourn for him, as one mourneth for his only son, and shall be in bitterness for him, as one that is in bitterness for his firstborn.