A 19-year-old man succumbed to injuries received in a crash on Highway 22X late on Sunday night.
The crash happened at roughly 5:30 p.m. MT last Thursday near Spruce Meadows Way southwest.
Police say the teenager was a passenger in a 1997 Dodge Avenger that ran two stop signs and collided with a 2003 Ford Cutaway van.
The 19-year-old driver of the car remains in hospital with life-threatening injuries.
The 54-year-old driver of the cube van was not hurt in the crash.
Police do not believe alcohol played a factor.