Twenty-one were killed and 17 were injured in last week's mass shooting.
A small town in rural Texas was left reeling after a gunman opened fire at an elementary school, killing 19 children.
Two teachers were also killed in the May 24 shooting at Robb Elementary School in Uvalde, according to authorities.
The alleged gunman -- identified by authorities as 18-year-old Salvador Ramos, a student at Uvalde High School -- was killed by law enforcement at the scene.
The suspect allegedly shot and injured his grandmother before opening fire at the school, officials said.
At least 21 people are dead after a gunman opened fire in Uvalde on Tuesday, authorities said.
Most of the victims were children in their last week of school before the summer break. Many other students and adults were injured in the mass shooting.
Here's what we know about what unfolded so far.
