A man faces a four-year prison sentence in connection with a school bus crash that killed six students in Chattanooga.

Johnthony Walker was found guilty of criminally negligent homicide and reckless assault charges in the crash that happened in 2016.

Walker was sentenced Tuesday. CBS affiliate WDEF reports that Walker has already served more than a year before the trial started and will quickly be eligible for parole.

Six Woodmore Elementary School kids died in the crash. Investigators said Walker was speeding when the bus crashed with 37 children on board. He was charged with 34 offenses, including vehicular homicide.