Drugs caused death of Knoll brothers
The deaths of Gregory Knoll, 43, and Jeffrey Knoll, 40, were caused by drug overdoses, according to the final autopsy report. The findings were released Tuesday by St. Croix County Sheriff Dennis Hillstead.
The report said both brothers died on or about May 10 in their Burkhardt apartment. The bodies were not discovered until May 27 when the owner of the building received an anonymous call suggesting something was wrong.
The autopsy, conducted by the Ramsey County (Minn.) Medical Examiner's Office, revealed that Jeffrey Knoll died of a heroin overdose; his brother Gregory died from an overdose of prescription drugs.
Because the men died about two weeks before their bodies were discovered, the final autopsy report was more difficult to reach because of the degree of decomposition. The initial autopsy result could only say the men weren't shot or stabbed.
There was no indication of a struggle prior to their deaths and the initial findings of the autopsy didn't reveal any visible trauma to either body. The men were found lying where they normally slept, the sheriff said.
The death remains under investigation by the St. Croix County Sheriff's Department, according to Hillstead.