Diane Coughlin, 68, Mark Nieman, 53, and Natasha Nieman, 24, killed in head-on crash on SR 26 in Adams County, Washington

State Patrol officials say 53-year-old Mark Nieman of Des Moines, Washington was at the wheel of a small pickup truck with 24-year-old Natasha Nieman of Des Moines, Washington riding as passenger when their truck crossed the centerline and hit the SUV head on.