UPDATE: The City of Charlotte confirmed at 8:42 MT that the civilian who was shot is not dead but is instead in critical condition and on life support.
Previous coverage continues below:
By Holly Yan, Ed Lavandera and Boris Sanchez
CHARLOTTE, North Carolina (CNN) -- (Latest developments, published at 08:05 p.m. MT
The person who was killed at a violent protest in Charlotte was shot by another civilian, the North Carolina city tweeted on its official account. Charlotte police did not fire the shot, the tweet said.
Charlotte-Mecklenburg Police Chief Kerr Putney told Fox News about the death that occurred during a protest over a deadly officer-involved shooting Tuesday.
One police officer has been injured, according to a city tweet. The officer was transported to a hospital with undisclosed injuries.
A line of police officers wearing riot helmets and carrying shields have been approached at times by angry protesters. One man, who tells CNN he is a public defender, puts himself between the two lines of people, trying to get people to calm down.
Police have grabbed one person and taken him behind the line of riot officers.
(Original story, published at 7:17 p.m. MT)
For a second night, protests over a deadly officer-involved shooting in Charlotte, North Carolina, turned violent, with police firing tear gas and demonstrators throwing objects and trying to damage vehicles.
Keith Lamont Scott, a father of seven, was killed by police in an apartment complex parking lot Tuesday as officers looked for another man named in a warrant they were trying to serve.
The shooting set off a long night of violent protests and Wednesday the demonstrations continued for a second night, starting off as a peaceful march through downtown Charlotte.
But when the demonstrators neared an Omni Hotel, some people climbed the roof of an outdoor mall and started throwing objects at the crowd.
Other people were banging on the doors of the hotel, and police in riot gear emerged in the entrance.
Differing stories on shooting
His family said Scott, an African-American, was unarmed and sitting in his car reading a book, waiting for his son to come home from school.
But Charlotte-Mecklenburg Police Chief Kerr Putney said Scott exited his car with a gun, not a book. He said officers couldn't find a book at the scene.
"It's time for the voiceless majority to stand up and be heard," said the police chief, who is black.
"It's time to change the narrative because I can tell you from the facts that the story's a little bit different as to how it's been portrayed so far, especially through social media."
Putney said evidence and witnesses support the officers' claim that Scott was armed.
Officers repeatedly told Scott to drop his handgun, the chief said, but he didn't. Officer Brentley Vinson, who is black, then shot him.
The chief said he was not certain whether Scott pointed his gun at officers. Vinson, who was in plain clothes and wearing a CMPD vest, did not have a body camera. Three uniformed officers were wearing cameras and investigators are reviewing the footage.
A person doesn't have to point a weapon directly at police to prompt deadly force, CNN law enforcement analyst Art Roderick said.
"You don't have to actually wait until a handgun is pointed at you because you're talking milliseconds of a decision as to whether you're going to pull your trigger, or that individual is going to pull their trigger," Roderick said.
Who is the officer?
Vinson has worked for Charlotte-Mecklenburg police for two years.
He played football at Liberty University from 2009-2012 and majored in criminal justice, according to his biography on Liberty University's website.
Former teammate Austin Marsh told CNN that Vinson was a "standup guy."
"It breaks my heart to see something like this happen, and I have a really hard time believing that Brent shot a man in his car while waiting for his (son) for no reason," Marsh said.
"Brent has always been a great guy founded on good morals. I find it very hard to believe that he would gun down an innocent man."
CNN briefly spoke to Vinson's father, Alex Vinson, on the phone. He asked for privacy and said no one in the family would be speaking to the media.
The officer has been placed on paid administrative leave, Mayor Jennifer Roberts said.
Daughter streams video on Facebook Live
Moments after her father was shot, Lyric Scott started recording on Facebook Live, livid and screaming at officers on the scene.
"They shot my daddy 'cause he's black," she said. "He was sitting in his car reading a mother******* book. So they shot him. That's what happened."
Lyric, who keeps the camera on officers through most of the 31-minute video, said her father often goes outside to read a book.
About halfway through the video, Lyric apparently learns from a news report that her father has died. She starts screaming and crying hysterically.
"My daddy's dead! My daddy's dead!" she screams. "Where's the cop that shot my daddy?"
On Wednesday, Keith Scott's wife released a statement saying her family is devastated and she called for protesters to remain calm.
"Keith was a loving husband, father, brother and friend who will be deeply missed every day," Rakeyia Scott said. "As a family, we respect the rights of those who wish to protest, but we ask that people protest peacefully. Please do not hurt people or members of law enforcement, damage property or take things that do not belong to you in the name of protesting."
Bottles, rocks and fires
Hundreds of protesters rallied overnight, chanting "black lives matter." Some threw rocks at police, set fires and blocked part of Interstate 85.
Others jumped on top of a police van and stomped on it, breaking the windshield and other windows.
Putney said 16 officers were injured in the protests.
At least seven people were hospitalized with minor injuries, CNN affiliate WSOC reported. Five others were arrested.
The mayor and police chief implored the community to refrain from more violence.
And while community leaders also said they don't condone violence, B.J. Murphy of the Nation of Islam called for a different kind of protest.
"What we're calling for is an economic boycott of the whole city Charlotte," he said. "Since black lives do not matter for this city, then our black dollars shouldn't matter."
Protesters began demonstrating again Wednesday evening at police headquarters in Charlotte. From there they marched to one of the city's downtown parks before returning to the area around police station.
'When will our lives truly matter?'
Corine Mack, who attended the protests, said the community is frustrated.
"When will our lives truly matter? A black father is dead. There are children tonight who will never see their father again," said Mack, president of the Charlotte chapter of the NAACP.
"We need to change policies. We need to change procedure. We need to hold police accountable. It's a modern-day lynching. Charlotte is not a good place right now; we're in the throes of this problem."
Gov. Pat McCrory said he has been in touch with the mayor and other city officials as they tried to restore calm..
"My prayers are with the Scott family and also our law enforcement, especially the 16 police officers who were injured last night."
Another controversial police shooting
The Charlotte case is the latest in a series of controversial shootings of black men by police. Protesters have been demanding justice and an end to police brutality for months.
Last week's fatal shooting of Terence Crutcher, an unarmed black man in Tulsa, Oklahoma, sparked protests after video of the killing was aired Monday.
Crutcher's father, the Rev. Joey Crutcher, said the overnight protests in Charlotte are "just a continuation of the same thing over and over and over again."
"And it's perpetuated against people of color more than anything else," he said. "If it would have been in the reverse, if it would have been a Caucasian, it would have been totally different."
U.S. Attorney General Loretta Lynch acknowledged the country's racial tensions after the latest police shootings.
"They have once again highlighted -- in the most vivid and painful terms -- the real divisions that still persist in this nation between law enforcement and communities of color," Lynch said.
She denounced the violence that erupted in Charlotte.
"Protest is protected by our Constitution and is a vital instrument for raising issues and creating change. But when it turns violent, it undermines the very justice that it seeks to achieve."
CNN's Boris Sanchez and Ed Lavandera reported from Charlotte, and Holly Yan reported and wrote from Atlanta. CNN's Faith Karimi, Steve Almasy, AnneClaire Stapleton, Sheena Jones, Alisyn Camerota, Keith Allen, Christine Sever and Shawn Nottingham contributed to this report.