By Michael Donoghue Vermont News First SWANTON – Swanton Police are investigating a single-car crash that claimed the life of a 62-year-old Swanton man on Friday evening. Marlin Morton, formerly of St. Albans, was driving westbound on Vermont 78 when his 2012 Jeep Liberty went off the road about 5:35 p.m., village police said. Sgt. Kyle Gagne said the Jeep struck a tree and landed upright in the Missisquoi River. Missisquoi Rescue transported …