The former officer has been remembered as a gregarious and outspoken leader who mentored youths and insisted on strict ethical conduct among his employees.
The fatal shooting of a retired African American police captain in St Louis, in the US, by looters aired on Facebook Live before it was taken down.
David Dorn, 77, was found dead on the footpath in front of Lee's Pawn & Jewellery about 2.30am (local time) on Tuesday.
Mr Dorn was a friend of the shop's owner and frequently checked on the business when alarms went off, his wife, St Louis police Sgt. Ann Marie Dorn, told the St. Louis Post-Dispatch.
READ MORE: US cities torn apart by violence, looting
The Facebook Live video has since been taken down, but a number of users voiced their distress after watching the shooting.
"I just seen a man die on live man! Smh," state Rep. Rasheen Aldridge wrote on Facebook.
Another distressed user wrote that what he witnessed "sickened" him to his stomach as no one came to the former officer's aid as he lay dying on the sidewalk.
No arrests have been made.
Cities across the US have seen protests and violence since George Floyd died May 25 after a white Minneapolis officer pressed his knee into Floyd's neck for several minutes even after the handcuffed black man stopped moving and pleading for air.
The shooting came on a violent night in St Louis, where four officers were shot, officers were pelted with rocks and fireworks, and 55 businesses were burglarised or damaged, including a convenience store that burned. Police also shot and gravely injured a burglary suspect who they say shot at officers.
An outspoken leader
Mr Dorn spent half his life on the Missouri force. He served 38 years before retiring in October 2007. He then became chief of Moline Acres, a small town in St Louis County.
The former officer has been remembered as a gregarious and outspoken leader who mentored youths and insisted on strict ethical conduct among his employees, a long time colleague said on Tuesday.
Former St Louis County police Chief Tim Fitch knew Dorn for 30 years and said they became close friends when Dorn and his wife were leading the St Louis police department's Explorers program for young people interested in law enforcement careers, while Fitch was leading the county's program.
"He was very dedicated to youth, especially disadvantaged youth," said Fitch, who led the St Louis County Police Department from 2009 to 2014.
"He wanted to see them succeed. He wanted to be a role model for those young men and women to go into law enforcement."
Mr Dorn' s personality was "bigger than life," Fitch said.
"He was a fun guy, a happy guy. You never had to wonder what he was thinking when somebody did something incredibly stupid like a crime because he would just say it as he saw it."
When he took over as chief in Moline Acres, Dorn made it clear that his officers would be held to the strictest of standards, Fitch said.
"He wanted them to do the right thing all the time," Fitch said.
The Ethical Society of Police, which represents black officers in St Louis, said in a news release that Dorn was "the type of brother that would've given his life to save them if he had to."
St Louis police Chief John Hayden called Dorn a "fine captain."
"Many of us, the other officers, looked up to him," Hayden said.
"Was very well-liked, very pleasant. And his wife still works here. So a very sad time for our agency. We will honour him."
- WITH AAP
Source: 9News https://www.9news.com.au/world/george-floyd-protests-looters-fatally-shoot-retired-us-police-captain-on-facebook-live-video/3e6e961c-eca1-4e01-b40c-256aefdff2c2