OKLAHOMA CITY - Snapchat posts capture the driver of a fatal rollover with drugs and alcohol hours before the crash.

A video also shows the final moments of the 16-year-old girl who died in the crash.

Investigators went back to the crash site at I-240 and Eastern Thursday afternoon. They closed down traffic to use 3-D cameras that allow investigators to piece together the final moments of the crash.

Police are also including Ashley Robison’s Snapchat posts in their investigation.   

Police confirm the girl running down the stairs in the video is 16-year-old Courtney Snodgrass. She was killed after being ejected from Robison’s car. She landed on I-240 and was hit by passing vehicles.

One of the injured passengers told police the four teens were drinking at a hotel in Moore before the crash.

Snodgrass’s family members visited the site where she died. They placed a cross in her memory near the interstate. 

“They shouldn’t have gotten in the car,” said Bobby, relative. “Nobody should been driving at that age. They should have found a sober driver.”

Snodgrass's family said she was a straight-A student at Moore High School and full of life.

The crash has not only impacted her family, a 19-year-old man is in the hospital with brain trauma and on a ventilator.

Robison is in jail facing DUI and second-degree murder charges.

“She needs to be in jail,” said Bobby. “I hope they find out who gave them the alcohol and they need to be in jail.”  

A GoFundMe account has been set up for Snodgrass. Her said the money raised will go towards her funeral expenses.