At a press conference on May 27, McCraw said it was the "wrong decision" not to confront Ramos earlier. Here's a timeline of the Texas school shooting and what we know about it so far.
On May 24, 19 children and two teachers were murdered in a mass shooting at Robb Elementary School in Uvalde, Texas. At least 17 others, including children, were injured but did not die.
After the 2012 shooting at Sandy Hook Elementary School in Newtown, Connecticut, this is the nation's second-deadliest K-12 school shooting in history.
Salvador Ramos, 18, has been recognized as the shooter who carried out the attack. He was shot and murdered about 11:30 a.m. that day, just 90 minutes after arriving at the school.
Ramos, a high school dropout, had no criminal or mental health background that officials were aware of. Authorities are still investigating the events surrounding the fatal shooting, so his motivation is unclear.
An representative from the Texas Department of Public Safety (...