JEFFERSON COUNTY, Colo. -- Two people were killed and six others were injured when a driver crossed a median and plowed into oncoming traffic on Interstate 70 near the Morrison exit on Sunday morning.
The accident happened about 11 a.m. and the interstate was closed until about 6:15 p.m., the Colorado State Patrol said.
Jeffery Stumpf, 54 of Evergreen, was driving a white 2001 Chevrolet 2500 pickup westbound when he crossed the grassy median into eastbound lanes, striking the front of a 2006 Toyota 4Runner, the Colorado State Patrol said.
Both vehicles rotated counter-clockwise. The Chevrolet then struck a 2017 white Jeep Wranger, causing it to roll onto its passenger side.
A second Jeep in the eastbound lanes, a 2000 red Wrangler Rubicon, was hit in the front as the Chevrolet was still rotating, the Colorado State Patrol said.
As the Chevrolet came to rest, a black Honda Civic was hit on the left side.
Stumpf was taken to St. Anthony Hospital in Lakewood where he was pronounced dead. It's not clear what caused him to cross the grassy median.
The woman driving the 4Runner, 52-year-old Jodie Stewart of Idaho Springs, died at the scene, the Colorado State Patrol said. A 17-year-old male in the vehicle was taken to St. Anthony Hospital with minor injuries.
The driver of the white Jeep, 54-year-old Mark Brown of Golden, was taken to St. Anthony with serious injuries. His passenger, 50-year-old Karen Brown of Golden, was taken to St. Anthony with moderate injuries.
The driver of the red Jeep, 46-year-old Todd Davidson of Golden, was taken to St. Anthony with minor injuries. Passengers Gwen Davidson, 45 of Golden, and a 16-year-old male were taken to St. Anthony with serious injuries, the Colorado State Patrol said.
The driver of the Honda, Sandra Maes of Denver, was not injured. A passenger in the Honda, Thomas Antholz, was also not injured. Their ages weren't available, the Colorado State Patrol said.
Lonny Parker arrived at the crash seconds after it happened. He said dozens of people got out of their cars and ran to help the victims trapped inside their mangled vehicles.
"For each person that was injured, it seemed like there was probably four to five groups of people there to assess them. People were stabilizing them, consulting them. If someone was going in panic mode, you could hear other people saying, 'You're going to be OK, we got you,'" Parker said.
He worked with others to help Stumpf in his vehicle. They worked to stabilize his neck and pry open a door. Parker said Stumpf was having a hard time breathing, and complained of chest and back pain.
"He was having a hard time at first telling us where he was going, where he was from, stuff like that," Parker said. "He had no recollection of any of that. All he could tell us is he had really bad abdominal pain and his back had really bad pain.
"I was extremely impressed with the quick response of people passing by to stop their vehicles and lend a hand where ever they could. People with safety equipment, good fire extinguishers, pretty much everything you could need in a massive accident like this one."
The crash caused traffic backups that spanned for miles.
The interstate was closed for several hours because of the investigation.
"We need to know if it was a violent crime, a medical event or mechanical defect," the Colorado State Patrol said. "We have to be certain we all of the evidence now. Once the roads open, anything missed would be eradicated. Justice and answers for victims is [at] stake."