# Boise Cops Solve Tylenol Murderer Identity

> Boise police identify Dr. Mathew Betkouski as 'The Unknown Wanderer' linked to 1982 Tylenol poisonings.
- Title: Boise Cops Solve Tylenol Murderer Identity | Shortify
- Summary: Boise police identify Dr. Mathew Betkouski as 'The Unknown Wanderer' linked to 1982 Tylenol poisonings. Boise police identified Dr. Mathew Betkouski as 'The…
- Keywords: boise, mathew betkouski, tylenol murders, unsolved mysteries, ada county sheriff, cyanide poisoning, tylenol murderer, cold case, Cops, Solve, Tylenol, Murderer
- Source: The Hollywood Reporter — https://hollywoodreporter.com/tv/tv-news/tylenol-murders-unsolved-mysteries-doc-mathew-betkouski-1236708350
- Author: Tony Maglio
- Published: 2026-09-23T16:46:26+00:00
- Read time: 1 min
- Topics: boise, mathew betkouski, tylenol murders, unsolved mysteries, ada county sheriff, cyanide poisoning, tylenol murderer, cold case
## Boise Cops Identify Tylenol Murderer
Ada County Sheriff’s Office solved the 'Unknown Wanderer' cold case, revealing Dr. Mathew Francis Betkouski as the man who died by suicide in 1982.
## Betkouski Linked to Tylenol Murders
Dr. Betkouski may be the 1982 Tylenol Murderer who poisoned at least seven people with cyanide in Chicago-area stores.
## Betkouski’s Background
Dr. Betkouski had a documented fascination with chemistry and explosives from a young age, and was fired by Lockheed in 1982 after a pharmacy incident.
## Cyanide Confession Theory
Betkouski’s body was found in Sacred Heart Catholic Church after he allegedly made a confession, with cyanide ingestion as his cause of death.
## Unsolved Mysteries Documentary
Unsolved Mysteries will release a documentary on October 9, 2026, detailing the connection between Betkouski and the Tylenol murders.
## No Official Suspect Designation
Idaho police cannot name Betkouski a suspect in the Chicago Tylenol murders due to jurisdictional boundaries, though they shared findings with Chicago PD.
## Key takeaway

Boise police identified Dr. Mathew Betkouski as 'The Unknown Wanderer' who may have committed the 1982 Tylenol murders.