Accident reconstruction teams have concluded their investigation into the crash involving the Grayling golf team.
According to Michigan State Police, the report shows the Rhonda Mitchell, the driver of the van traveling eastbound on County Road 612, was traveling at 77 miles per hour at the time of impact.
The report shows Jason Potter, the driver of the van carrying the Grayling Golf Team, was traveling at 43 miles per hour at time of impact. State Police say this means both drivers are at fault, as Potter ran the stop sign and Mitchell was speeding.
Potter's toxicology report shows no signs of alcohol or controlled substances. Mitchell's, however, shows she had marijuana and morphine in her system. State Police say Mitchell did have a medical marijuana card, but it had expired a year earlier. She also had a prescription for the morphine.
The crash on County Road 612 in late April, killed three people including golf coach Jason Potter, team member Louis Menard and 27-year-old Cassandra Stapleton, who was in the other van.
The case is being forwarded to the Kalkaska County Prosecutor for potential charges.