Vehicle owners sought in Ohio shootings
Sheriff's deputy says they are not suspects
This image taken from a videotape shows one of the vehicles that stopped at a gas station near the site of a shooting.
(CNN) -- Authorities in Ohio said Thursday they want to talk to the owners of four vehicles captured in grainy images on a gas station's videotape about one of the 18 related shootings along Interstate 270 near Columbus.
Franklin County Sheriff's Chief Deputy Steve Martin said the tape showed the vehicles stopped at the gas station about one-quarter mile from a house at which shots were fired December 15. The house was north of I-270, the expressway circling Ohio's capital.
No one was hit and the vehicle owners are not suspects, Martin said.
"We're trying to capture those owners to see if they knew anything about the shooting down the street," he added.
Investigators have been studying the four blurry images, which were taken by a camera that was scanning the station's parking lot at the time of the shootings, Martin said.
The vehicles are described as a mini-van, a box-like utility van and two cars.
The sole casualty in the shootings, which began in May, was Gail Knisley, 62. She died after being struck November 25 as she rode in a car on I-270.