"He said, 'We've got to stop, it's late and they need help,'" Nikki Knight told the Chicago Sun-Times (http://bit.ly/INP0kU ) on Sunday.
He pulled his truck into a nearby driveway and Nikki Knight waited inside while he went out to help Linda Darlington, 42, of Crown Point. 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.
Nikki Knight, a registered nurse, said when she got to the wreck, neither Knight nor Darlington had pulses. They were pronounced dead at the scene early Sunday.
"I went from a being a newlywed to a widow in less than 48 hours the highest high to the lowest low," Nikki 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.
Knight also is survived by two his two daughters, a stepdaughter and stepson.
Information from: Chicago Sun-Times, http://www.suntimes.com/index