Johnthony Walker faces several charges, including six counts of vehicular homicide, for the deaths of 8-year-old Keonte Wilson, 9-year-old Cor'Dayja Jones, 6-year-old D'Myunn Brown, 6-year-old Zyaira Mateen, 9-year-old Zoie Nash, and 10-year-old Zyanna Harris in November 2016.
Police say Walker was speeding when bus 366, carrying 37 Woodmore Elementary children, tipped over and crashed into a tree.
At his arraignment in March 2017, Walker pleaded not guilty to the negligent homicide charges.
In August, Walker's attorney filed a motion in court claiming a large vehicle had caused him to swerve right to avoid a collision.
Walker again appeared in court in December. Hamilton County District Attorney Neal Pinkston says that right before the crash, there was an incoming phone call to Walker's phone that lasted four minutes.
Last week, the judge in the case ruled that testimony about prior reported interactions Walker had with students and driving conduct will not be admitted before the jury.
The jury for this case comes from Montgomery County, north of Nashville.