Uvalde school shooting: A look at the timeline of the massacre

The loved ones of the teachers and students who were shot and killed inside Robb Elementary School on Tuesday want to know what happened. Their focus is on time. MORE: https://www.khou.com/article/news/special-reports/uvalde-school-shooting/uvalde-texas-school-shooting-gunman-walked-through-unlocked-door/285-14e6da25-b301-4946-bd60-19b1c6fbffee