An autopsy Sunday failed to provide a reason for the death of Jonathan J. Krenzelok, 29, of Madison, who died Saturday evening on a porch at 144 Breese Terrace.
Dane County Coroner John Stanley said preliminary findings from the autopsy “confirm that physical trauma was not the cause of death,” in the case. Further medical studies are pending, Stanley said.
Krenzelok helped a friend move into the house, part of the Triangle fraternity on Friday, and was drinking with friends Friday night. He was found dead on the porch of the house at about 5 p.m. Saturday.
The case remains under investigation by the Madison Police Department and the Dane County Coroner’s Office.