Abbott says the information that he provided at a press conference two days ago was a recitation of what law enforcement had told him in a room beforehand.

"It'd be great if you had some help — but I can assure you those kids need help more than you need help," says Steve Ijames, who trains police agencies on active-shooter situations.

Law enforcement is still investigating the shooting at Robb Elementary School. But accounts from officials have offered a confusing look at the timeline of Tuesday's shooting.

Two teachers and 19 students were killed at Robb Elementary School in Uvalde, Texas, making it the second-deadliest school shooting in U.S. history. At least four others were injured.

"Is this the moment to reform gun laws?" British reporter Mark Stone from Sky News asked the U.S. senator.

School safety experts have coalesced around a handful of important measures communities and politicians can take to protect students.

This isn't the first time the NRA has held its convention days after a nearby mass shooting. Some politicians and musicians are dropping out, and gun control advocates are preparing protests.

This isn't the first time the NRA has held its convention days after a nearby mass shooting. Some politicians and musicians are dropping out, and gun control advocates are preparing protests.

These two tragedies share similarities, including certain aspects of the suspects and how the weapons were accessed.

The Tampa Bay Rays and the New York Yankees are using their Twitter accounts to bring awareness to gun violence instead of covering their game Thursday night.

The National Rifle Association begins its annual convention Friday, and its leaders are gearing up to "reflect on" — and deflect any blame for — the deadly shooting earlier this week in Uvalde, Texas.

The National Rifle Association begins its annual convention Friday, and its leaders are gearing up to "reflect on" — and deflect any blame for — the deadly shooting earlier this week in Uvalde, Texas.

Hundreds of students at Oxford High School, the Michigan school where four were killed in November, walked out and formed a 'U' on the football field to show support for Uvalde students and families.

"The children!" cries Linda Martinez, a retired pastor who came to the scene with a bouquet of flowers. "So young. I just can't believe it's real. We just have to help each other."

At least five organizations in and beyond the state have sent dogs to Uvalde, where they are visiting hospitals, churches and schools. Many have responded to other mass shootings across the country.