CNN aired newly released audio last night that purports to capture the gunshots that killed 18-year-old Michael Brown in Ferguson, Missouri, earlier this month.

A man who asked not to be identified reportedly lives in a building near the location where the shooting unfolded. He was on a video chat with a friend August 9 when he says he inadvertently captured audio of the clash between Officer Darren Wilson and Brown.

That audio, which has not been authenticated by authorities, includes two clusters of gunshots with a pause in the middle. The first cluster includes six shots and the second, which comes after the pause, includes four additional shots, forensic audio expert Paul Ginsberg told CNN.

Listen to the audio below:

It is that space in the middle, though, that is creating some questions. If this audio is, indeed, from the night of the shooting, it adds yet another evidential element to a highly emotive and complex case.

Considering that Brown was unarmed, some critics might content that the pause is evidence of excessive force being used during the clash. But others say that there might be other explanations for what led to a second round of shots.

“To be fair, there could be other explanations for that pause,” Van Jones, a liberal commentator and TV host, said on CNN’s “Crossfire.” “Maybe the officer will say, ‘Well I fired, and he kept advancing, so I fired again.’”

The FBI has interviewed the individual who claims to have taped the shots to speak further about the recording and its possible relevance to the case.

Read more about the audio here.

(H/T: CNN)