The Fond du Lac County Sheriff’s Office continues to investigate a fatal head-on collision that killed two people to determing if distracted driving with a cell phone was a factor. The crash Thursday afternoon happened on Highway 23 west of Fond du Lac near Eldorado. Sheriff’s captain, Bill Tadych, says witnesses the car that crossed the center line, had veered into the oncoming lane of traffic earlier. Tadych says investigators are trying to determine if the driver of the car that crossed the center line was distracted on her cell phone. Tadych says distracted driving crashes involving cell phones are preventable.