Died in jail or a lockup
John Kowalski
John Kowalski died while held at the Jefferson County jail in Colorado. A Colorado Politics article from November 2022 names him among recent deaths of people held at the jail, months before a later 2019 case the article discusses. The article gives no date, cause, or other circumstances of his death, and no accounts from family or others about who he was.
Cause of death, as reported: Cause not yet determined