Cross reference
Mark 15:27
27 And with him they crucify two robbers, one on the right hand, and one on his left,
Matthew 27:38
38 Then crucified with him are two robbers, one on the right hand, and one on the left,
Luke 23:32-33
32 And there were also others -- two evil-doers -- with him, to be put to death;
33 and when they came to the place that is called Skull, there they crucified him and the evil-doers, one on the right hand and one on the left.
John 19:18
18 where they crucified him, and with him two others, on this side, and on that side, and Jesus in the midst.