Daylin Takendrick St. Pierre, 21, and Dakota James Charboneau, 24, both of the Spirit Lake Reservation, were sentenced Monday in the 2016 murder of Carla Yellowbird.
St. Pierre was ordered to serve 27 1/2 years in federal prison, followed by 5 years of supervised release, on his convictions of felony murder, conspiracy to commit robbery and use of a firearm in a felony crime.
Charboneau was ordered to serve 50 years in federal prison, followed by 5 years of supervised release, on his plea of guilty to second-degree murder, aiding and abetting and use of a firearm in a felony crime.
In August 2016, Carla Yellowbird traveled to the Spirit Lake Indian Reservation with Suna Guy, who previously pleaded guilty to felony murder and was sentenced in the case.
While on the reservation, Charboneau and Guy planned to rob Yellowbird and recruited St. Pierre to commit the crime.
St. Pierre shot and killed Yellowbird while robbing her.