October 4, 2014 10:14 AM EDT
If I recall right, what happen is that when the priestess were giving them their last rites, one stormcloak got impatient and when straight to the block by himself. Remember mister "Shut up and let get this over with" ? Also after the first guy was executed Ralof said "As fearless in death, as he was in life" meaning that he went there by himself before they killed Ulfric.
But the reason why they went for the dragonborn next instead of Ulfric still makes me wounder.