Killed just after his wedding: William Knight.

Killed just after his wedding: William Knight.

Chicago: A man married less than seven hours was killed along with a stranded motorist he stopped to help in the snow when they were hit by several vehicles, US authorities say.

The man was on the way back from his wedding reception to a hotel when the accident happened.

William “Riley” Knight, 49, was driving with his wife, Nikki, when they saw a woman who had slid off the road in the snow near Crown Point, Indiana about 11.45pm on Saturday.

“He said, ‘We’ve got to stop, it’s late and they need help,’” Nikki Knight told the Chicago Sun-Times on Sunday.

He pulled his truck into a nearby driveway and Mrs Knight waited inside while he went out to help Linda Darlington, 42. They were standing by the side of the road when they were struck by one vehicle, and then two more, the Lake County sheriff’s office said.

Mrs Knight, a registered nurse, said when she got to the wreck, neither Mr Knight nor Ms Darlington had pulses. They were pronounced dead early on Sunday.

“I went from a being a newlywed to a widow in less than 48 hours - the highest high to the lowest low,” Mrs Knight said. “It’s a blur.”

Police said all drivers involved in the crash remained at the scene. No charges had been filed as of Sunday afternoon local time.

Mr Knight also is survived by his two daughters, a stepdaughter and stepson.

AP