Former Minneapolis police officer Derek Chauvin was seen walking out of the courtroom with his attorney's phone number on his left hand after a jury found him guilty of second-degree and third-degree murder and second-degree manslaughter in the death of George Floyd.
"'I can't breathe.' Those were George Floyd's last words", Biden said.
Tou Thao, Thomas Lane, and J. Alexander Kueng, who were all fired and arrested following Mr Floyd's death last May, face charges of aiding and abetting second-degree murder and second-degree manslaughter.
The broader "practice or pattern investigation into the department aims to root out more systemic problems within local police agencies, efforts that have been used by the DOJ during the Obama and George W. Bush administrations to pursue settlements with departments found to have engaged repeatedly in abusive tactics". It is unclear whether the years under investigation will begin when Floyd died or before.
The Justice Department on Friday withdrew a policy put in place during former President Donald Trump's administration that limited the tools the federal government could use to monitor and probe police misconduct.
Last week, Garland revoked a Trump-era memo that made it more hard for the Justice Department's civil rights lawyers to reach consent decrees with state and local governments over policing practices, and to seek court approval for independent monitors to check whether police departments were honoring the terms of settlements. In a Tuesday evening speech, he said much more needed to be done.
Chauvin was convicted Tuesday, almost one year after kneeling on Floyd's neck in an incident that sparked global protests against police brutality.
"Today, I am announcing that the Justice Department has opened a civil investigation to determine whether the Minneapolis Police Department engages in a pattern or practice of unconstitutional or unlawful policing", he said in remarks at the Justice Department. We must not turn away.