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Good evening and welcome to a special edition of Outfront. I'm Aaron Burnett. And tonight,

a survivor's powerful story.

For the first time, we were hearing from a Michigan State University professor, Marco Diaz Munoz, who was teaching his literature class when a gunman burst in and attacked his classroom.

And the professor says the gunman fired 15 shots. In all, three students were killed, five others injured. Throughout this hour, you will hear

what he saw that night and how he and his students are now dealing with the horror they have lived

and the loss they are suffering. It comes, as we are learning new details tonight about the shooter.

According to police, he had a note listing more potential targets, including two schools in

New Jersey. He had a disturbing amount of ammunition and targets, including two schools in New Jersey.

He had a disturbing amount of ammunition and weapons on his body and in his backpack, including two nine-millimeter handguns, nine loaded magazines, and a pouch with 50 rounds of ammunition.

Now, I want to bring in Miguel Marquez, who spoke to the professor in this gripping interview

that we are going to share with you in full.

And Miguel, as we begin tonight with the special coverage, have police found any connection yet between the shooter and the school?

Yeah, this is what is very frustrating to Professor Diaz Munoz and everybody on this campus.

There is still no connection that anybody has established between him, the school,

Berkey Hall, this particular classroom.

But what played out that night, it just put ordinary people in extraordinary circumstances. So you're halfway through the course on Monday night.

Yeah, and it was like past 8, 8 in the evening.

...