- Inmate Matthew Henson died while working at a Simplot job site during a dangerous heat wave in Idaho, with his cause of death potentially related to heat stroke.
An Idaho Department of Correction inmate died while working at an outdoor job site during a dangerous heat wave, and now workplace safety investigators are looking into what happened.
On July 11, temperatures across southwest Idaho spiked into the triple digits — 10 to 12 degrees above normal, according to the National Weather Service. That same day, 45-year-old inmate Matthew Henson died while working at a Simplot job site.
Henson was taking part in a prison work release program at a 750-acre Simplot feedlot in Grand View, about 60 miles southeast of Boise, where tens of thousands of cattle are held…