Det. Sgt. Kory Ochitwa was first to testify.
He was the lead investigator looking into this case with SPS.
Ochitwa said the incident started just before 4 a.m. CT on June 19, 2017, after a 2007 Chevrolet Silverado was reported stolen.
Police located the pickup twice that morning and pursued the driver, but eventually aborted the chase.
Officers located the truck later that night and engaged in a pursuit using multiple police vehicles and a police plane.
It resulted in the truck hitting several vehicles, including ramming a police car and police firing two rounds at the car.
Police reported the driver reached speeds of around 150 kilometres per hour before eventually crashing into a car and ending up in a ditch near Circle and Airport drives.
Eaglechief was pronounced dead at the scene.
Two other officers also testified on Monday.
Sgt. Mikael Ziola is an officer for the forensic unit who looked closely at the photographic evidence at the scene.
Const. Christina Holovach is a camera operator for a police plane and presented video footage of the chase.
Sixteen people are expected to testify this week including the officer who fired his weapon and the two passengers in the pickup.
The six-member jury will determine who died and how they died as well as offering recommendations as to how similar deaths can be avoided.