The driver involved in the fatal crash that killed actor Treat Williams in Vermont last year pleaded guilty on Friday to a reduced charge of negligent driving with death resulting, RadarOnline.com has learned. Ryan Koss, who knew Williams through the local theater community and considered him a friend, received a one-year deferred sentence, which means he will not go to prison. As part of his probation, his driver’s license will be revoked for a year. As RadarOnline.com reported, Koss was behind the wheel of a Honda Element SUV on June 12, 2023, when he turned left and collided with Williams, …