The video provides a more complete picture about what happened July 6, 2016 and may help explain why the jury decided last Friday to acquit Yanez on one count of second-degree manslaughter and two counts of intentional discharge of firearm that endangers safety.
The moments after Castile's death, recorded and uploaded online by his girlfriend, have been seen by millions. Although the squad-car footage was described repeatedly and was shown to jurors in the courtroom, it had never been made public until Tuesday.
In the video, as emergency medical personnel are working on Castile who is laying on the street, Yanez can be heard off camera recounting the events of the shooting.
The officer tells Castile his tail light is out and that he will need to see license and proof of insurance.
Yanez testified that Castile ignored his commands not to pull out the gun.
The squad-car video shows Yanez approaching Castile's auto and asking for a driver's license and proof of insurance.
As Castile hands Yanez his insurance card, he says, "Sir, I have to tell you that I do have a firearm on me".
As he completes that sentence, Yanez appears to immediately grip his police pistol.
The statement appeared in the transcript of Yanez's questioning by investigators in July past year, in which the officer also failed to disclose that Castile had said out loud that he was "not reaching" for his handgun after being warned not to do so. And I thought he was reaching for the gun. Although it sounds as though Castile agrees to comply with the officer's demands, Yanez pulls his own gun out and shoots into the vehicle several times.
Officers like Yanez, who is leaving his department under a "voluntary separation agreement", pose a clear and present danger to law-abiding gun owners.
After the shooting, Yanez can be heard screaming, "Don't move!" and "I told him not to reach for it!"
"Don't pull it out!" Yanez slowly walks away, and another officer says: "You all right?" However, in Yanez's one-hour interview with the BCA, recorded the day after the shooting, Yanez is less explicit.
Yanez: And I don't know where the gun was, he didn't tell me where the (expletive) gun was. "He didn't tell me where the [expletive deleted] gun was". Kauser said he was surprised when Yanez started shooting. "I thought I was going to die". Because if you think about it, the bar is always moving.
"The driver looks more like one of our suspects, just 'cause of the wide-set nose", Yanez said.
Meanwhile Officer Joseph Kauser can be seen on the other side of the auto. The Facebook video was shared widely, and included Reynolds' statements that Castile hadn't been reaching for his gun.
The jury heard two weeks of testimony and deliberated four-and-a-half days before finding Yanez not guilty.
The city of St. Anthony announced Friday Yanez was being dismissed from its police force, despite the acquittal.
But, no. As Noah pointed out, the NRA has been "completely silent" on the Castile verdict, despite his case being, "according to their rhetoric, everything they stand against: an officer of the state depriving a citizen of his life because he was legally carrying a firearm".