SOUTH HUNTINGDON (KDKA) — It’s been more than a year since the tragic accident that led to a woman being hit by a tractor trailer in Westmoreland County, and still, police and family members are trying to figure out who was behind the wheel of that big rig.

It was March of 2014 when the driver of an SUV made a wrong turn that would lead to tragedy on Interstate 70.

“Basically, what happened was a vehicle was going the wrong way down 70 and was hit by another vehicle,” said Trooper Stefani Lucas, of Pennsylvania State Police.

Initially, no one suffered an major injuries. Then, 22-year-old Siva Stewart of Connellsville exited the wrecked jeep in the early morning darkness.

“And basically walked into the oncoming traffic, and was struck and killed by what we believe was a tractor trailer,” said Trooper Lucas.

Since then, investigators have been trying to find that truck to no avail. A good description of the truck has proven a problem as well; even those at the scene couldn’t help.

“By their own admission, it was dark, everyone was worked up from the crash, everything happened so quickly,” said Trooper Lucas.

The driver of the jeep, 40-year-old Michael P. Brazzon, of Perryopolis, was charged with DUI.

Troopers want to make clear the truck’s driver may not even know they struck the woman. They just want to help the family out and close the investigation.

“We believe they may have impacted a vehicle and may have thought they’d impacted debris,” Trooper Lucas said. “We want that person to come forward and confirm they were the one involved and get further information.”

If you have any recollection or think you may have seen something, state police want to hear from you.

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