The documentary is raising questions about the chronology of events surrounding Brown's death, suggesting he did not rob the store and instead traded marijuana for store merchandise.
The robbery allegation is what led to the confrontation between police and Brown, which resulted in Brown, a black man, being killed by Darren Wilson, a white officer.
"If taken on its face as purported in the documentary, it would go to the suggestion that Mike Brown wasn't there to steal, he was there to do a transaction which may or may not have been legal", Cuomo reported. Within the Stranger Fruit documentary that premiered at SXSW on Saturday, the additional footage reveals Brown approaching the register to drop a small bag on the counter before picking up a cigarillo-filled sack. He suggested the video was not publicly released because it was "irrelevant" and that people sympathetic to Brown would have accused the police of "piling on" with unfavorable evidence had they shared it. He asserted that he hadn't cut any part of the video showing employees giving the small bag back to Brown and also claimed that the store was known for being "shady" and sometimes even sold marijuana to its customers.
While the video does not have sound, McCulloch said Brown and the store employees are seen having a discussion while the clerks are examining what is on the counter. Police have characterized the incident as a strong-armed robbery.
Brown's parents have filed a federal lawsuit against Officer Wilson, the city of Ferguson and the former Ferguson police chief.
"Mike did not rob the store", the narrator said in documentary.
Mr. Kanzler, the store's attorney disagrees.
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"Don't tell me that he stole from the store if they handed him a bag [of cigarillos] that they created themselves. anybody who sees this with their eyes can see what's happening", Pollock said. The 18-year-old walks toward the door and then hands the bag back to the clerk before leaving.
Brown had just graduated high school and had plans to head off to college before he and a friend were detained by Wilson, who said he feared for his life before squeezing off a dozen rounds aimed at Brown, including a fatal shot to head.
St. Louis Police told the network they "can't confirm the authenticity of the video" as of Sunday, March 12.
Some local police who investigated the shooting told the Post-Dispatch they didn't think the video shed much light on the case.
Pollock claims to have discovered the existence of the footage in a police report that failed to document what can actually be seen transpiring on camera.
About 100 protesters gathered at the store Sunday night, forcing it to close, and gunshots were heard before midnight, but no one appeared to be injured, according to the St. Louis Post-Dispatch.
Wilson would find Brown and a friend walking in the middle of a nearby street minutes later. And when he gets about. Police under Missouri law may use deadly force if they "reasonably believe" themselves or others to be in imminent danger.
After detailing where the video came from and why it wasn't included as evidence - stating it was deemed inadmissible while calling the new video "poorly edited" - McCulloch commented on the documentary and the filmmaker that brought it to the forefront.