(NBC Chicago) - A Crown Point, Ind., woman went from being a newlywed to a widow in fewer than eight hours Saturday after her new husband was struck and killed while assisting another motorist.

Nikki Knight and William Knight were on their way to a hotel at about 11:45 p.m. when they spotted a woman whose vehicle had gone into a ditch on the shoulder of 109th Avenue near Lane Street in the northwest Indiana community.

"He said, 'We’ve got to stop. It’s late and they need help,'" Nikki Knight recalled Sunday.

Parking in a nearby driveway, the new bride stayed in their truck while her husband walked out to the street to help Linda Darlington, 42.

The two were standing by the side of the road when they were struck first by a vehicle headed east on 109th, and hit twice more by two vehicles trailing the first, according to the Lake County Sheriff’s office.

They died of blunt force trauma, according to autopsies performed Sunday.

Police said all drivers involved in the crash remained at the scene. It was unknown if drugs or alcohol were factors in the accident, and no charges had been filed as of Sunday afternoon, according to the sheriff’s office.

Read more on the story at NBC Chicago HERE