STAR VALLEY, Wyo. \u2014 A Jackson man was killed Sunday in Star Valley when he lost control of his vehicle in icy conditions and collided with a truck and trailer on US 89. John Koerber, 22, of Jackson, was pronounced dead at the scene after he lost control of a 2002 Ford Focus he was driving, entered into the oncoming lane and was struck by a 2007 GMC Sierra pulling an empty horse trailer. Authorities say he was wearing a seatbelt. The accident occurred on US 89 just north of Afton, Wyoming at milepost 96 in an area of the highway known as \u201cThe Narrows.\u201d Wyoming Highway Patrol was called to the scene at approximately 1:10 p.m. on Sunday, December 1. The driver of the 2007 GMC has been identified as 49-year-old Thayne, Wyoming resident Corey Christensen.\u00a0Christensen was wearing his seatbelt and transported to the Star Valley Medical Center for injuries sustained in the crash.\u00a0A passenger in the GMC has been identified as 48-year-old Thayne, Wyoming resident Maryanne Christensen.\u00a0She was wearing her seatbelt and transported to the Star Valley Medical Center for injuries she sustained in the crash. Speed on the part of Koerber is being investigated as a possible contributing factor. Koerber was a 2015 graduate of Jackson Hole High School where he also competed in robotics. This\u00a0is the 142nd\u00a0fatality on Wyoming\u2019s roadways in 2019 compared to 106 in 2018, 119 in 2017, and 109 in 2016 to date.