Connecticut has released the 911 phone calls from the mass shooting at Newtown’s Sandy Hook Elementary after losing a court challenge. State officials had argued the tapes would cause unnecessary suffering for the victims’ families, but lost their appeal last month. In one recording, a caller describes seeing the shooter.

Operator: “Newtown 911. What’s the location of your emergency?”

Caller: “Sandy Hook School. I think there’s somebody shooting in here, in Sandy Hook School.”

Operator: “OK, what makes you think that?”

Caller: “Because somebody’s got a gun. I caught a glimpse of somebody running down the hallway … They’re still running, they’re still shooting. Sandy Hook School please.”

The first anniversary of Newtown is next week. Congress has failed to pass a single piece of gun-control legislation in the past year.