In the hour it took law enforcement officials to confront and kill the shooter at an elementary school in Uvalde, Texas, terrified children begged the police to help them.
At least two of the calls made to the emergency services were made by children hiding in their classrooms, according to Texas officials.
A child called the police at least an hour after the shooting began.
Two of the students who made the calls survived the shooting.
Uvalde police made the wrong decision to treat the situation as a barricaded subject and not as an active shooter, despite the fact that the calls to the emergency room were made over a period of 40 minutes.
The wrong decision led to the killings of 19 children and two teachers.
The police chief, who was the on-site commander, was convinced that the shooter had barricaded himself inside a classroom and that there was no more threat to the children.
Even though there were at least 19 armed police officers inside the building during the shooting, none of them tried to stop the shooter for more than an hour.
It was not the right decision. It was the wrong decision.
People hiding inside the classrooms made a series of frantic calls to the emergency services after the first shots were fired.
A child whispered that she was in Room 112 and called for help. She said multiple people had died. She told the emergency services that eight to nine students were alive.
A female student in Room 112 hung up after another student told her to call the police. Three shots could be heard over the phone.
The first child called to report that the door had been shot at. She was told to be very quiet.
During the 21-second call, the child asked for the police to be sent.
She said she could hear police officers next door. Four minutes later, shots were heard on the call.
Loud sounds that appeared to be from officers moving children out of the class were heard on the call.
The child appeared to be led outside the classroom before the call was cut.