A Phoenix man was killed and three others injured after a head-on collision on Highway 260 near Christopher Creek Friday afternoon.
Department of Public Safety Sgt. John Whetten said 58-year-old Floyd R. Poyner died after his pickup truck went into the oncoming lane and struck a Chandler family in their SUV.
Whetten said the family from Chandler, a couple and their 8-year-old son, received minor injuries but were flown to Scottsdale Osborn Healthcare as a precautionary measure.
"They were fortunate to have a vehicle new enough to have airbags, which greatly reduced the severity of their injuries," Whetten said.
"They were also wearing seat belts."
Local Realtor Kim Ross was behind the SUV when Poyner crossed into her lane.
"This small, red Ford pickup was coming across the lane heading towards us," Ross said. "I went off into the ditch because there was nowhere else to go."
Ross went to assist those involved in the accident.
"The red truck was smoking and there was gas leaking out," Ross said. "I couldn't open the driver-side door, so I went to the passenger door and tried to feel for a pulse. His injuries were so severe."
Poyner was pronounced dead at the scene.
Whetten said what caused Poyner to swerve erratically is still unknown.
"I think he either fell asleep or had a heart attack by the way he came across the road," Ross said. "The truck turned a little, but he never put on the brakes."
An autopsy will be performed to determine the exact cause of Poyner's death.