On August 8, 2020 at about 2:41 PM the Grant County Sheriff's Office received a call regarding a person who dove off of a bank on the Grant River and did not resurface. Emergency crews were directed to an area on the Grant River along Pigeon River Rd, about one mile from County U, in Waterloo Township.
Multiple emergency agencies responded to the scene to attempt to locate the person. About one hour after the initial call, emergency crews located the male victim, Lynn Zimmerman, 17, of Livingston, WI, on the bottom of the river in the same location that he had gone under the water. EMS crews checked Zimmerman for signs of life and did not find any. He was declared deceased at the scene by the Grant County Coroner's Office.
The investigation into the incident showed that Zimmerman was with a group of 12 friends and family, who were canoeing the Grant River. Most of the group had stopped at this location to swim for a short time. Witnesses reported that Zimmerman dove, hands and headfirst, into the water from the bank. The witnesses said that Zimmerman went into the water and after a couple seconds or so, he resurfaced and then immediately sank back under the water and did not resurface again.
A couple people from the group paddled down river to Pigeon River Rd where they got out, went to a nearby home, and called for help.
The Grant County Sheriff's Office conducted the investigation into the incident while the following departments responded to assist in the search for, and eventually locating Zimmerman: Cassville Fire and EMS Departments, Bloomington Fire Department, West Grant EMS, Glen Haven First Responders, Bagley Fire and First Responders, Grant County Emergency Management, and members of the Southwest Wisconsin Technical Rescue Team's swift water rescue team.