A Massachusetts man was struck and killed by a tractor-trailer on the New York State Thruway in Sloatsburg late Saturday night after he was ejected from his own car in an earlier accident. New York State police say 45 year-old Robert Harrington was driving southbound when he struck the guardrail between Exit 15A and the Woodbury toll barrier. He was pronounced dead at the scene. The driver of the truck was not injured.