FERGUSON, Mo. (AP) — A convenience store is disputing a new documentary’s claim that previously unreleased surveillance video suggests Michael Brown didn’t rob the store shortly before he was fatally shot by police in Ferguson, Missouri, in 2014.

One of the filmmakers, Jason Pollock, told The New York Times he believes the footage shows Brown trading a small amount of marijuana for a bag of cigarillos around 1 a.m. on Aug. 9, 2014. The video doesn’t clearly show what was exchanged, but shows Brown leaving behind the bag of cigarillos.

Pollock reasons Brown intended to come back later for the cigarillos. Pollock argues the new footage challenges what authorities have said about Brown pushing a worker and taking cigarillos during another visit to the store about 10 hours later, shortly before he was killed.

Jay Kanzler, an attorney for the store and the employees shown in the video, said no such transaction took place.

“There was no understanding. No agreement. Those folks didn’t sell him cigarillos for pot. The reason he gave it back is he was walking out the door with unpaid merchandise and they wanted it back,” Kanzler told the newspaper.

The store’s co-owner, Andy Patel, told the St. Louis Post-Dispatch on Sunday that Brown “grabbed the cigarillos and stole them” when Brown returned to the store later that day. Previously released surveillance video shows Brown strong-arming Patel and pushing him as he left.

Brown, who was 18, was fatally shot minutes later by Ferguson police officer Darren Wilson. Brown, who was black, was unarmed. Wilson is white.

The shooting led to months of unrest and sometimes violent protests in the St. Louis suburb. A local grand jury and the U.S. Department of Justice found no evidence of wrongdoing by Wilson, who resigned in November 2014. But the shooting and protests led to scrutiny of Ferguson, resulting in a scathing Justice Department report alleging racial bias in the city’s criminal justice system.

Some of the local officials who investigated the fatal shooting said they didn’t think the new footage shed much light on the case.

St. Louis County Police Chief Jon Belmar told the St. Louis Post-Dispatch he wasn’t surprised that Brown was in the Ferguson Market earlier in the day. Belmar said his department focused on investigating the shooting, not the incident at the store.

Former Ferguson Police Chief Tom Jackson said he hadn’t seen the earlier surveillance video, but that he didn’t think it was fair to connect the store to a drug transaction.

The new documentary called “Stranger Fruit” premiered Saturday at the South By Southwest festival in Austin, Texas.