SC Highway Patrol's Multidisciplinary Accident Investigation Team is investigating seven deadly hit and run accidents that took place over the past 10 years in the Pee Dee and Grand Strand.
The most recent happened last weekend on Old Wire Road.
Charles McCall, 38, was walking along the road when he was struck and killed by a car.
Troopers said deadly hit and run wrecks mainly happen late at night and are complicated to investigate.
"The hit and runs involving a pedestrian are very difficult to solve. There's usually a very limited amount of evidence. We got to take the smallest piece of evidence, something as small as a paint chip, size of a fingernail and work it as hard as we can," said Cpl. Jeremy Leach, with the SC Highway MAIT Team. "We'll interview everybody we can put our hands on that knows the victim, that was there that night, saw the victim before the collision, knows where they were coming from, and we're work it back as far as we can to try and piece together where they were coming from and who might have known him at the time or knows what happened."
Leach added that's why they carefully document all evidence left on the road and the victim.
"We do look at the injuries. We attend the autopsy on the victim. A lot of times there even something as small as a paint chip embedded in them, in their clothing. We collect all of that send it off for analysis. That will, a lot of times, give us a make or type of vehicle that we can start looking for. We do locate a lot of vehicle parts on these types of wrecks. We're able to trace those back as well to determine what kind of vehicle they came from, help point us in the right direction."
He said they photographically map all evidence involved in the collision and they use the maps to create a computer generated scale diagram.
The diagram helps them determine how the accident happened and what direction the vehicle was traveling when it struck the victim.
Troopers say technology is helpful, but in many cases the public holds the key to solving hit and runs.
"Somebody has a small piece. They think it's totally insignificant, but that could be just the piece we're looking for to wrap everything up," said Corporal Sonny Collins, SC Highway Patrol Troop 5.
Troopers continue to investigate all seven unsolved cases. They said from time to time, they get new information that furthers their investigation.
If you have any information on the hit and run accidents, you can dial *HP to reach Highway Patrol.