A New York man was struck and killed by a car while crossing the highway in Southbury on Christmas Eve.  Connecticut State Police say 85-year old Ronald Shaw was driving westbound by exit 16 when he traveled off the roadway into the grass lined median.  Shaw exited his vehicle and walked out onto the highway.  He was struck by a 60-year old West Hartford woman's car as she traveled in the right lane.  Shaw was pronounced dead at the scene. The accident remains under investigation.