David Russell Courson arrested for manslaughter after allowing a 13-year-old girl to drive pickup that runs over and kills 6-year-old Rebecca Courson.

A Jefferson County man has been arrested on a charge of manslaughter in the death of his 6-year-old daughter, who was run over by a truck Monday afternoon in his yard.

David Russell Courson, 38, was a passenger in the truck, which was driven by a 13-year-old girl, according to the Florida Highway Patrol.

Investigators say alcohol and drugs were involved and that Courson was the only adult present when his daughter, Rebecca Courson, was killed.

Rebecca was playing in the yard Monday afternoon when the 13-year-old girl, who is unrelated to Courson, started to move the truck to a different part of the property located at 2537 St. Augustine Road in Jefferson County.

Courson and an 8-year-old boy were also inside truck, which was Courson’s.

But instead of moving forward, the girl put the car in reverse, backing over Rebecca with the truck’s rear tires. She then pulled forward and parked the truck.

When the three got out, they found that the girl had been hit, according to a FHP spokesman. Rebecca’s mother, and Courson’s wife, was at work at the time.

Rebecca Courson was taken to Tallahassee Memorial HealthCare where she later died.

Troopers could smell alcohol on the breath of both the 13-year-old behind the wheel and a 12-year-old girl who was not in the car, Stephens said.

Courson had also been drinking and a bag of marijuana was also found inside the truck.

The investigation is still ongoing and FHP is trying to clear up the reasons why a 13-year-old was driving a truck under the influence of alcohol with an adult nearby.

“We’re still trying to piece that part together,” police said. “No good reason, other than lack of responsibility of the one adult that was there at the house.”

The 13-year-old girl behind the wheel could still face charges, police said.