Georgia State Patrol investigators are trying to determine what led to a two-car accident that killed five people, including a mother and her son from Eden, last Wednesday.

Judith Vincent, 66, was taking her stepson Ronnie White, 44, to a new job in Savannah. They were headed east on Interstate 16 near the Pooler Parkway exit when a car from the westbound lane crossed the median and struck Vincent’s Kia Soul. Vincent, White and the three occupants of the car — Aundrey Douglas of Claxton, Deven Mobley of Claxton and Willie Braggs of Glennville — were killed in the collision.

“All we can say is we think speed was a factor,” said Trooper Josh Januska.

Douglas, Mobley and Braggs were in a Ford Mustang that went more than 250 feet from its lane, across the median and into the path of Vincent’s car. Since the crash happened at approximately 5:30 a.m., there was little other traffic on the road.

“There are no witnesses to wreck who can give us statements,” Januska said. “I think there are a lot of unanswered questions. We’re still trying to figure out what happened ourselves.”

Funeral services for Vincent and White were held Sunday. Vincent, an Illinois native, was a member of New Hope Christian Church and active in the church’s food pantry.