The 16-year-old driver involved in a head-on crash killing six people near Cambridge, Minnesota early Sunday morning had no alcohol in her system, according to a preliminary toxicology report.

Sebrina Schumacher is the lone survivor of Sunday's crash, and is in satisfactory condition at Hennepin County Medical Center in Minneapolis. Wednesday night, her parents said they had received her blood-alcohol test results from Cambridge Medical Center, revealing no alcohol in her system at the time of the crash.

The Minnesota State Patrol on Wednesday said their investigation is far from over. The State Patrol took their own samples, which were sent to the BCA, and those results could take weeks to come back. At the scene of the crash, the State Patrol said the odor of alcohol was detected in the SUV the car full of teens collided with.

15-year-old Kelsee Blackledge, 16-year-old Tres Kendryna, 17-year-old Travis Buchan and 21-year-old Travis "Griz" Gryczkowsky died when the car they were in -- driven by Sebrina Schumacher -- crashed with on-coming SUV killing 23-year-old Aaron Neuschwander of Mora and 24-year-old Joshua Netzel of Sandstone.

After days of grieving, the town of Cambridge prepared to say good-bye to six people killed in a weekend car crash. The Cambridge community gathered as one on Wednesday, showing up at the high school to honor their friends, to mourn together.

"I thought it was a pretty good thing to say the last goodbyes," said Jose Peraza, a friend of Gryczkowsky.

Inside the auditorium, New Hope Community Church put on the memorial service. The auditorium was filled with people praying and singing.

While the school is trying to console students and support the families of those who lost their children and resume to some sense of normalcy, many families are using the crash to remind their young drivers how much they love them and want to make good choices -- like wearing seatbelts, not drinking -- and staying off the road late at night.