Person heard making death threats inside building, Northlake IL

00:00

I have an assault in progress.

00:03

Units, what is saw in progress? (number withheld) West North Avenue.

00:06

Anonymous says there's a sound of a person saying, I will kill you.

00:10

Caller only hears, doesn't see anything.

00:12

No further zone for station clear.

Person heard making death threats inside building