Late last night, Mark Fleming was traveling with his wife in their minivan near Freeport on I-295.
Fleming attempted to avoid a deer in the roadway and collided with a truck tractor that was in the right lane.
Both vehicles went off the roadway on the right shoulder and rolled.
The driver of the truck tractor, Dana Thibeault, died on the scene. The Flemings were transported to Maine Medical Center with non-life threatening injuries.
The scene was reconstructed and investigated by Maine State Police.