Update on Texas school shooting: 19 students, 2 teachers dead,

Nineteen students and at least two teachers were murded during a shooting at a primary school in Texas, the latest in a spate of mass shootings in the United States. The 18-year-old gunman carried out the killings at Robb Elementary School in the city of Uvalde. Authorities say the carnage began when the suspect, shot his own grandmother, who survived. Joining us is Kate Fisher.