updated 06/11/2014 AT 3:00 PM ET
•originally published 06/11/2014 AT 4:05 PM ET
Kevin Roper, the driver behind the wheel of the big rig that was involved in an accident that left actor and comedian Tracy Morgan critically injured and another man dead, pleaded not guilty to vehicular homicide and assault by auto during an arraignment in Middlesex County Superior Court in New Brunswick, New Jersey, on Wednesday.
Roper faces up to 15 years in prison if convicted on all charges, Jim O’Neill, the spokesman for the prosecutor’s office, tells PEOPLE.
According to a complaint filed by New Jersey State Police, Roper was awake for more than 24 hours before slamming his Walmart truck into a limo carrying Morgan and his party early Saturday morning on the New Jersey Turnpike.
Roper is free on $50,000 bail, and assistant prosecutor Sheree Pitchford made no request to change that.
“The bail will be continued as set,” Judge Bradley Ferencz said. He added that a review of Roper’s driving history is clean.