The truck driver who rear-ended comedian Tracy Morgan’s limousine, injuring him and killing another comedian, has been indicted for charges of manslaughter, vehicular homicide and aggravated assault, according to a New York Times report.

Truck driver Kevin Roper’s Walmart truck crashed into Morgan’s limo in June 2014 on the New Jersey Turnpike when he failed to notice that traffic had slowed ahead of him. Morgan was severely injured and comedian James McNair was killed as a result of the collision. Three other passengers were also injured in the crash.

Morgan sued Walmart, accusing the driver of falling asleep at the wheel after being awake for 28 hours prior to the accident. The two sides settled for an undisclosed sum out of court.

Roper pled not guilty after being charged initially with vehicular homicide and a Superior Court judge determined at the time that a grand jury would decide how to continue the case.

The charges brought against Roper could carry a prison sentence of up to 30 years.

Earlier this year, an investigation by the National Transportation Safety Board determined that driver fatigue played a role in the accident. Roper was on hour 13 of a 14-hour shift,but had driven for 12 hours from his home in Georgia to Delaware to start his route.