The 29-year-old's official cause of death was ruled a homicide, according to the report released Thursday by the West Tennessee Regional Forensic Center.
The lawsuit compared Nichols' fatal police beating to the 1955 killing of Emmett Till, saying the 29-year-old suffered a beating "endured at hands of a modern-day lynch mob."
Black police chiefs, commissioners, sheriffs and commanders from across the country are set to meet this weekend in Detroit for the annual CEO symposium of the National Organization of Black Law Enforcement Executives.
The late 29-year-old Sacramento native will be posthumously honored with a bronze plaque that will be installed at the newly renamed park.
Decertification hearings for others investigated in his death are pending. Decertification prevents officers from going to work in the same jurisdiction. They can still get police jobs out of state.
Lt. DeWayne Smith served as a supervisor on the now-deactivated SCORPION unit — the specialized police unit responsible for conducting the traffic stop that ultimately lead to Nichols' death.
The 20-some hours of video and audio footage were set to be released Wednesday alongside other documents from the city's investigation into the officers involved in the 29-year-old Black man's death.
Nearly 20 hours of new footage and audio, along with accompanying documents, will be released to the public on Wednesday afternoon, officials say.
They were arraigned on charges of murder, assault and other felonies. Tyre Nichols died three days after officers beat him following a Jan. 7 traffic stop.
Two sheriff's deputies who have been suspended for five days failed to keep their body cameras activated after they went to the location where Nichols had been beaten by Memphis police, officials say.
The Shelby County District Attorney's Office says it will review all "closed and pending" cases of the five former Memphis police officers charged in Nichols' death. Four had prior violations at work.
Preston Hemphill had been suspended as he was investigated for his role in the Jan. 7 arrest of Nichols, who died in a hospital three days later. Five Memphis officers have already been fired.
Five officers have been indicted over the beating death of Nichols. Four of them had been disciplined earlier by the Memphis police department for car crashes, failure to report use of force and more.
The Rev. Al Sharpton will deliver the eulogy, and Vice President Kamala Harris is set to attend at the invitation of Nichols' family.
Tuesday on Political Rewind: More voices are calling for Congress to pass a bill that would address police misconduct. The bill passed the U.S. House in 2021 but was never taken up by the Senate. Plus, Southern Democrats urge President Biden and the Democratic National Committee to hold their convention in Atlanta.