Law enforcement officials held a press gaggle in front of Robb Elemetary School in Uvalde, Texas, the site of a horrific mass shooting that left 19 children and 2 teachers dead. Officials blamed an unnamed teacher for leaving a back door to the school propped open, which allowed the heavily armed shooter to enter the building. They claimed they did not enter the classroom because after hearing “hundreds of shots in four minutes,” they assumed all the people in the classroom were dead; they were wrong.