Elias Schiller and his father, James, pleaded guilty on Thursday in relation to the death of Yellowknife resident Ahmed Mahamud Ali last fall.
Ali, a taxi driver, was found unconscious in his cab outside Stanton Territorial Hospital in November 2018. He was pronounced dead shortly after being discovered.
Elias Schiller, 19, pleaded guilty to manslaughter. James Schiller, 49, admitted being an accessory to aggravated assault.
Both Schillers had originally faced charges of second-degree murder. Those charges were reduced last week.
The precise circumstances in which Ali died remain unclear.
After his death, taxi drivers organized a procession through Yellowknife with at least 90 cabs attending.
On Thursday, Crown prosecutor Jill Andrews asked for a two-day sentencing hearing to accommodate the number of victim impact statements and family travelling from beyond the NWT to attend.
Andrews told Cabin Radio the sentencing is set for January 27 and 28.