The mayor of Uvalde says that he will accept possible mistakes: "The truth will come to light"

There are new details about the initial response to the massacre at Robb Elementary School.

Uvalde Mayor Don McLaughlin says a so-called "negotiator" frantically tried to phone the gunman inside the store, but he didn't answer.

And a friend of the murdered teacher Eva Mireles describes their last moments together.

CNN's Nick Valencia has more.