A Wellsville man accused of torching a tractor-trailer is headed to state prison. In Allegany County court Wednesday, Judge Thomas Brown sentenced Robert E. Roach, 45, to a state prison term of between three and six years. In January, Roach pleaded guilty to felony arson. The crime occurred on July 5, 2014, at the Central Tractor Plaza, when Roach conspired with two others to torch a Freightliner truck. The Wellsville man was also ordered to pay a court surcharge and a DNA fee.