The sentence will run concurrently with the 3-1/2 years Thao previously received on a federal conviction of violating Floyd's civil rights, Fox 9 in Minneapolis reported.
Cahill in May found Thao guilty of one count of aiding and abetting manslaughter in the second degree for his role in Floyd's death.
Thao, a nine-year veteran of the police force, was the fourth and final officer sentenced in the killing.
Lane was sentenced to 2-1/2 years and Kueng to three years in federal prison, to run concurrently with the state sentence.
Last year, he received a concurrent sentence of 21 years in prison on federal charges of violating Floyd's civil rights.
Persons:
Tou Thao, George Floyd, Peter Cahill, Keith Ellison, Thao, Cahill, Derek Chauvin, Floyd, Thomas Lane, J, Alexander Kueng, Chauvin, Lane, Kueng, Brendan O'Brien, Will Dunham
Organizations:
Former Minnesota, Hennepin County Sheriff's, REUTERS, Former Minneapolis, Minnesota, Fox, Thomson
Locations:
Hennepin County Jail, Minneapolis , Minnesota, U.S, Hennepin County, Minneapolis, United States, Kueng, Chicago