A Montana Highway Patrol investigation found that a car carrying two Columbia Falls teenagers swerved into oncoming traffic twice on June 7 before swerving a third time and striking a van head-on, killing the teens.
The crash near Glacier Park International Airport killed 18-year-old Mercy Peterson. His passenger, 17-year-old Kayli Mercedes Wagoner, died in surgery at the Kalispell hospital.
Trooper Jerril Ren tells the Hungry Horse News ( ) that the exact cause of the crash may never be known. Witnesses tell the patrol that Peterson's vehicle swerved in front of an oncoming semitrailer and then into oncoming traffic a second time.
The driver of the semi said it appeared that Wagoner had her hands on the steering wheel, as if Peterson was distracted.
Ren says toxicology tests are pending.