--Mark 15--(12)And Pilate answered and said again unto them, What will ye then that I shall do unto him whom ye call the King of the Jews? (13)And they cried out again, Crucify him.
--Luke 23--(20)Pilate therefore, willing to release Jesus, spake again to them. (21)But they cried, saying, Crucify him, crucify him.
--John 19--(6)When the chief priests therefore and officers saw him, they cried out, saying, Crucify him, crucify him. Pilate saith unto them, Take ye him, and crucify him: for I find no fault in him.
According to the NIV Study Bible, crucifixion was a "Roman means of execution in which the victim was nailed to a cross. Heavy, wrought-iron nails were driven through the wrists and the heel bones. If the life of the victim lingered too long, death was hastened by breaking his legs (see Jn 19:33). Archaeologists have discovered the bones of a crucified man, near Jerusalem, dating between A.D. 7 and 66, which shed light on the position of the victim when nailed to the cross. Only slaves, the basest of criminals, and offenders who were not Roman citizens were executed in this manner. First-century authors vividly describe the agony and disgrace of being crucified" (1526).