John Noack, who was indicted in August after he allegedly lost control of his work truck on Highway 260, crashed into an oncoming car and killed three people, shot and killed himself Monday morning at his home in Payson, police said.
His wife said he had been distraught over the Aug. 15 accident, police said, in which his work truck crossed the center line and crashed into the Ford Escort Pauline Ann Jeffrey of Keams Canyon, Ariz. was driving. Jeffrey, her cousin Karen Begay and Begay's 2-year-old son were killed in the accident.
Begay's 4-year-old daughter, who was strapped into a child's car seat in the back seat of the car, was injured in the accident, but survived.
Noack was indicted on second-degree murder charges, and was awaiting trial.
"He had been down because of the accident," Sgt. Tom Tieman of the Payson Police Department said. "I guess it really affected him."
"This is a terrible, terrible tragedy," said Noack's employer, Arizona Public Service District Manager Jim Spencer. "On behalf of APS and our employees, our thoughts and prayers go out to the family. John was a long-term employee and a valued member of the APS family. We are all grieving his loss."
Deputy County Attorney Patti Wortman said Noack's criminal case will be dismissed as soon as her office receives notification of his death.
A funeral service for Noack will be held at 1 p.m. Wednesday at Mountain Bible Church.