So I knew what was happening from the very start. I knew that this was an absolutely heinous massacre. I watched it unfold before me live. I knew exactly what Hamas did. And yet I watched my progressive friends celebrate. These people were my friends. I had known them for years; broken bread with them, attended class with them, gone to protests with them. They were completely normal people who would otherwise absolutely abhor violence in their day-to-day life. Yet their immediate reaction was joy.