We now have access to calls from the first 15 minutes following the deadly Marysville-Pilchuck High School shooting on Oct. 24th -- and there are many of them.

But the one that gives a clearer picture of what happened that day is from the teacher who tried to intervene.

"911, we have a shooting, Marysville-Pilchuck High School cafeteria, the shooter-- many injured, Marysville-Pilchuck High School, we need emergency right away! Cafeteria, large cafeteria-- my name is Megan Siliberberger, I am a teacher-- Megan Silberberger,"the teacher dubbed a hero told a 911 dispatcher moments after the shooting.

"I tried to stop him before he shot himself. I do not know his name," she said.

"You said he shot himself?" the 911 operator asked her.

"He shot himself. Many are down. I do not know how many are down," she repeated.

"I am looking at him, I need help. I need help now! Shooter right here. He is wearing all black. I am staring at him right now, sitting next to him. I need help now! Shooter right here. Black pants, black shoes, black jacket," Silberberger told the dispatcher when pressed for more information.

Others in the lunchroom called 911 too-- panicked. One is a cafeteria worker who told the dispatcher she rushed students out a side door, including her own daughter, who was eating at the time of the tragedy.

"He was two tables away from my daughter," she cried.

Dozens of students fleeing the campus, parents receiving texts from their children, Marysville-Pilchuck staff, and people who live near the high school all called to report the shooting that killed five kids and seriously injured a sixth.

"I just had a principal run in and say we need ambulances ASAP," a staff member in the main office told a dispatcher.

But Silberberger's may be the most heartbreaking call of all:

"I tried to stop him," she told the dispatcher again.

Silberberger never spoke publicly about that day. At one point she released a statement saying she simply reacted as any of her colleagues would have in this situation.

Another call that stuck out was made by a neighbor who told dispatchers kids climbed her fence behind the school to get to safety. They told her the shooter was Jaylen Fryberg and she was the only caller to have that information for dispatchers.