"We definitely don't agree with the looting, but we do agree with the cause for protests," one of the armed citizens said in a video posted to Twitter.
Thousands of protesters wearing face coverings surrounded the Minneapolis Police Department's Third Precinct police station late Wednesday, about half a mile from where Floyd had been arrested.
"We need justice, we need justice. Those four officers need to be arrested. They executed by brother in broad daylight," Philonise Floyd told CNN's 'New Day.'
Protesters clashed with riot police for a second consecutive day over the killing of 46-year-old Floyd on Memorial Day.
Jonathan Veal said he had grown up playing sports with George Floyd in their hometown of Houston, Texas.
The video was released after bystander video showed a Minneapolis Park Police vehicle at the scene.
Minnesota Governor Tim Walz speaks on George Floyd's death for the first time as demonstrators at the 3d police precinct are met with rubber bullets.
The report describes Floyd's condition as "unresponsive" when medical personnel arrived and unchanging as they worked to revive him on the way to Hennepin County Medical Center.
Mayor Jacob Frey has asked the Hennepin County Attorney to charge former Minneapolis Police Officer Derek Chauvin with the death of George Floyd.
Tom Austin, the managing partner of F2 Group, told Newsweek that he "should have handled it differently," but insisted the incident had nothing to do with race.
Crowds have gathered in the city to demonstrate following the death of George Floyd.
While the video only shows one phase of the arrest process and has no audio, it shows George Floyd handcuffed and appearing to follow the officers' instructions.
"These cases can be considered immediately, fairly but swiftly, for criminal charges because you just can't have something like this. He was pleading for his life," Sen. Amy Klobuchar said on "Cuomo Prime Time."
Protesters converged upon the scene of George Floyd's death on Tuesday, some carrying signs reading "I can't breathe."
The protest, hosted by Black Lives Matter Minnesota, will take place outside the Cup Foods supermarket in Minneapolis, according to a Facebook group.
"This is the right call," Minneapolis Mayor Jacob Frey said when making the announcement on Twitter.
"You're a tough guy? A tough guy, huh?" the white police officer can be heard saying in a video of the incident.
With Prince's memoir just out and a remastered "1999" on the way, it's the perfect time to do a purple-colored tour of Minneapolis.
Trump also called the Democrats "very sick" and rattled off insults about several senior figures pushing for his impeachment.
The president and the Minneapolis mayor have been embroiled in a Twitter spat ahead of the rally being held in the city on Thursday.
The Oath Keepers refer to themselves as "guardians of the republic" but have been described by others as an armed conspiracy group.
The club is where scenes from the film "Purple Rain," starring local legend Prince, were filmed.
President Donald Trump's campaign is due to hold a rally at the Target Center in Minneapolis, but a contract dispute threatens the event.
The Evangelical Covenant Church (ECC) voted Friday to evict a pastor and expel his Minneapolis church from the denomination, ending a five-year conflict over LGBT inclusion.
"A smell resembling oil presented on-board," officials said. Paramedics who were called to the scene checked 15 people.
Police tracked the suspect to his daughter's hockey game in Wisconsin, where they retrieved his used napkin from a trash can.
The National Weather Service forecasted a "historic cold."