The 13 hours of audio were taken from scanner traffic from Feb. 12, the day Dorner was discovered hiding out in the Big Bear area. During the search, the recordings reveal how law enforcement began swarming the mountain area and closing all possible escape routes.
An hour later, the first exchange of gunfire happens when Dorner was spotted by California Department of Fish and Game officers.
"Fish and Game units were shot at and they returned fire," the recording says.
Dorner fled, but soon encountered Det. Jeremiah MacKay and Dep. Alex Collins of the San Bernardino County Sheriff's Department. A gun battle broke out and both deputies were wounded. MacKay and Collins were both loaded into a flatbed truck. Audio reveals the sheriff's department's airship called 40 King was called to transport them.
"Get down on the road and we'll send the truck to you ... 40 King just set down on the road where you can and we're in route to you," the recording says.
MacKay died and Collins was seriously injured.
After law enforcement surrounded the cabin where Dorner was holed up, they moved forward with a plan use tear gas to flush him out.
Twenty minutes later, dispatch reported a single gunshot coming from inside the cabin. The tense standoff ended with Dorner shooting himself in the head.
"Blood spatter is in the far corner," the recording says.
Dorner was wanted for killing Cal State Fullerton assistant basketball coach Monica Quan and her fiance, Keith Lawrence. Police said Dorner was also behind the shooting deaths of Riverside Police Officer Michael Crain.