The coach saw the shooter jump over a fence before the shooting.
A group of third graders were told to lock down by her.
The shooting's tragic outcome was a result of systemic failures.
A group of third graders were outside Robb Elementary school on May 24 when Silva saw a person with a backpack and a gun.
Silva sprang into action when he saw the shooter in the school's office.
Silva said that someone jumped over the fence and shot at him. Third graders were told to run inside by her.
According to a report released on Sunday by the Texas House Committee investigating the shooting that killed 19 children and two teachers, Silva's actions helped alert multiple Uvalde authorities that a shooter was on campus.
According to the report, "Robb Elementary School Coach Yvette Silva acted heroically and almost certainly saved lives by alerting the school to the attacker's advance." The majority of fourth grade classes locked down because of her quick response.
The principal tried to alert the entire school using the school's alert app but couldn't because of a bad internet signal.
Pete Arredondo, the police chief of the Uvalde Consolidated Independent School District, ordered the school to be shut down after he was told about the shooter.
According to the report, head custodian Jamie Perez heard Silva's announcement through the radio and immediately started to put the school on lock down.
Children were warned to flee after hearing gunshots. The teachers were about to take their classes out for a break when they heard the students being told to flee.
The report states that the school did not use the intercom system to alert them of the shooter.
After hearing the news of the approaching attacker, teachers began to put in procedures for a safe school. The police response to the shooting at the school may have cost lives.
The report says that they failed to save the lives of innocent victims over their own safety.
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