Rider deaths have been climbing at a "fast rate" this summer, safety officials have said.
He faces up to 55 years in prison if convicted.
The 32-year-old leaves a huge legacy following her death.
The ex-Gopher and pro runner is at home resting in comfort care.
The 32-year-old has inspired many during her battle with cancer.
The 18-year-old attended high school in New York Mills.