Three people are dead and one has been airlifted to hospital by STARS in serious condition after a head-on collision between two vehicles on Highway 22X, between Priddis Valley Road and 240 Street West around 3 a.m. Aug. 7. The vehicles, a Dodge Journey and Toyota Scion, were both carrying a male driver and a female passengers, all from Calgary. Both drivers were killed, as well as one of the female passengers.