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43 Years Later: Key Unlocks Idaho Man's Secret Life
24 Oct
Summary
- A man found dead in Boise in 1982 was identified as Matthew Francis Betkowski.
- A key found on the victim led investigators to Jacksonville, Florida.
- Investigators now consider a link between this case and the 1982 Tylenol murders.

In December 1982, a man found dead in a Boise, Idaho, Catholic church was dubbed the "Unknown Wanderer." Decades later, in 2018, Detective Tim Cooper's investigation, sparked by a parishioner's conversation, began to unravel the mystery. A key found among the victim's belongings, marked from Jacksonville, Florida, provided the first tangible lead.
This clue eventually led investigators to identify the man as Matthew Francis Betkowski, who was 39 when he died. Betkowski, from a prominent Southern California family, had a history of mental health struggles and a fascination with chemicals. His life included periods in Jacksonville, Florida, and southern New Mexico, marked by employment and personal difficulties, including a traumatic brain injury and a disturbance at a pharmacy.
The investigation into Betkowski's life has also brought renewed focus to the 1982 Tylenol poisonings, a case that deeply affected families like Kasia Janus, whose father, uncle, and aunt were victims. While Betkowski possessed a small homemade bottle of sodium cyanide, investigators have found no direct evidence linking him to the Chicago poisonings, though authorities are in communication with the relevant departments.
Despite no criminal history and the death of the brother who provided a DNA sample, Betkowski is now considered a viable suspect by some experts due to the cyanide connection and a map of Chicago found among his belongings. The investigations into both the "Unknown Wanderer" and the Tylenol murders remain ongoing.