Autopsy Shows Wis. Toddler Died from Heat

By KBJR News 1

July 19, 2013 Updated Jul 19, 2013 at 8:56 PM CDT

Polk County, WI (NNCNOW.com) - A preliminary autopsy indicates that excessive heat likely claimed the life of a Wisconsin toddler found in the trunk of a car Wednesday.

According to the Midwest Medical Examiner's report 2-year-old Isaiah Theis died of Hyperthermia.

Hypertherma happens when the body produces or absorbs more heat than it can handle.

Theis was last seen playing with his brother on the family farmstead around 7:30 p.m. Tuesday.

Temperatures during the time the child was missing were in the 90s, with heat indexes near the triple digits.

Theis was found around 10:15 p.m. Wednesday inside the trunk of a car parked outside his father's auto shop in Centuria, Wisconsin.

"There were no life threatening injuries or natural disease processes identified and no body fractures identified in a full body examination," said Polk County Sheriff Peter Johnson.

Investigators are still trying to determine how the little boy ended up in the locked trunk.

The Medical examiner who performed the autopsy found Thesis was a well-nourished and a normally developed 2 year old.

Toxicology test results are still pending.

Posted to the web by Kati Anderson.