The man killed when a large tower light pole fell on his vehicle along I-229 on Thursday has been identified as 60-year-old Frederick Lee VanHorn of Sioux Falls. According to the South Dakota Department of Public Safety, VanHorn was driving northbound near Exit 9 when a contractor working on a tower light pole reported that the pole began to lean and then fell across the highway. The pole struck VanHorn’s vehicle. The South Dakota Highway Patrol continues to investigate the incident.