Investigators say the trailer consisted of dual tanks of anhydrous ammonia used for agriculture purposes.
The GMC was driven by 51 year old Brian Gunnink also of Darien. Despite life-saving efforts the Walworth County Medical Examiner pronounced Fehrm dead at the scene at 7:43 PM.
The crash remains under investigation by the Walworth County Sheriff’s Office Crash Investigation Team and the Wisconsin State Patrol Commercial Motor Vehicle Inspectors.
Responding agencies include the Walworth County Sheriff’s Office, Wisconsin State Patrol, Darien and Sharon Fire and Rescue Services, Mercy MD1 physicians, and the Walworth County Medical Examiner’s Office.