Justin Vanderhoff, 19, was driving a truck that flipped over last month on Weld County Road 12, killing 14-year-old Mandy Brown.
Brown was an eighth grader at Fort Lupton Middle School.
Colorado State Patrol says speed was a factor in the crash.
Vanderhoff is due in court on June 23. He faces a charge of vehicular homicide – reckless driving.
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