The former Minneapolis police officer who pressed his knee into the neck of George Floyd has been charged with second-degree murder.
The three other police officers present at the scene during the killing have been charged with aiding and abetting second degree murder, CNN reports.
Derek Chauvin, the officer at the centre of the investigation, had previously been charged with third-degree murder.
This is the first time police have levelled charges against three other officers at the scene.
Widely seen bystander video showing Floyd’s May 25 death has sparked protests nationwide and around the world.
Derek Chauvin was fired May 26 and initially charged with third-degree murder and second-degree manslaughter. The three other officers involved were also fired but were not immediately charged.
The Star Tribune first reported that Minnesota Attorney-General Keith Ellison would be upgrading the charge against Chauvin while also charging Thomas Lane, J. Kueng and Tou Thao with aiding and abetting second-degree murder.
Before news of the upgraded charges, an lawyer for Chauvin said he was not making any statements at this time. Attorneys for Thao and Kueng did not return messages seeking comment on the charges.
Lawyer Ben Crump tweeted that the Floyd family was “deeply gratified” by Ellison’s action and called it “a source of peace for George’s family in this difficult time.”
He said Mr Ellison had told the family his office will continue to investigate and upgrade charges against Chauvin to first-degree murder if warranted.
Reached by phone, Mr Crump declined to speak beyond the statement or make clear when Mr Ellison had spoken with the family and whether he had been informed directly that additional charges had been filed.
Widely seen bystander video showing Mr Floyd’s death has sparked sometimes violent protests around the world against police brutality and discrimination.
Mr Floyd’s family and protesters have repeatedly called for criminal charges against all four officers as well as more serious charges for Chauvin, who held his knee to Mr Floyd’s neck.
He did that despite Mr Floyd’s protests that he couldn’t breathe, and stayed there even after Mr Floyd stopped moving.
Mr Floyd, a black man, was in handcuffs when he died with his face pressed to the street.
Earlier Wednesday, Mr Crump demanded that all four officers be charged.
“He died because he was starving for air,” he said.
“He needed a breath. So we are demanding justice. We expect all of the police officers to be arrested before we have the memorial here in Minneapolis, Minnesota, tomorrow.”
Mr Crump said the other officers failed to protect a man who was pleading for help and said he couldn’t breathe.
Mr Crump pointed to the criminal complaint against Chauvin, which said that while Mr Floyd was complaining he couldn’t breathe, Mr Lane asked Chauvin twice if they should roll him on his side.
Chauvin said they should keep him on his stomach.
“To us that is intent,” Mr Crump said. And he said the other officers were complicit because they failed to take action.
Personnel records released by the city show Chauvin served as a military policeman in the US Army in the late 1990s.
Since being hired as a police officer in 2001, he has been awarded two medals of valour: One for being part of a group of officers who opened fire on a stabbing suspect after the man pointed a shotgun at them in 2006, and one for apprehending another man in a domestic incident in 2008.
In the latter incident, Chauvin broke down a bathroom door and shot the man in the stomach.
Chauvin was reprimanded in 2008 for pulling a woman out of her car in 2007, frisking her and placing her in his squad car after he stopped her for speeding 10 miles per hour over the limit.
His dashboard camera was not activated and a report said he could have interviewed the woman while standing outside her car.
Lane, 37, and Kueng both joined the department in February 2019 and neither have any complaints on their files.
Lane previously worked as a correctional officer at the Hennepin County juvenile jail and as a probation officer at a residential treatment facility for adolescent boys.
Kueng was a 2018 graduate of the University of Minnesota where he worked part- time on campus security. He also worked as a theft-prevention officer at Macy’s in downtown Minneapolis while he was in college.
Tou Thao, a native Hmong speaker, joined the police force as a part-time community service officer in 2008 and was promoted to police officer in 2009. He was laid off later that year due to budget cuts and rehired in 2012. Gov. Tim Walz and the Minnesota Department of Human Rights on Tuesday launched a civil rights investigation of the Minneapolis Police Department and its history of racial discrimination, in hopes of forcing widespread change.
— Associated Press reporters Scott Bauer and Todd Richmond in Madison, Wisconsin, and Bernard Condon and Michael Sisak in New York contributed to this report.