From CNN | US News by Eric Levenson, Holly Yan and Elizabeth Wolfe, CNN
Today should have been a joyous day at Robb Elementary School as kids celebrated the last day of classes before summer vacation. Instead, the families of 19 students and two teachers in Uvalde, Texas, are planning funerals. Hundreds of classmates are traumatized by a heinous slaughter.
And nearly 48 hours later, serious questions still remain about how an 18-year-old with an assault-style rifle got inside the school, what law enforcement did in response and how the gunman was able to remain inside for as long as an hour before a tactical team finally forced its way in and killed him.