From The Hollywood Reporter · Tony Maglio · · 1m 10s
Boise Cops Solve Tylenol Murderer Identity
Boise police identify Dr. Mathew Betkouski as 'The Unknown Wanderer' linked to 1982 Tylenol poisonings.
In brief
Boise police identify Dr. Mathew Betkouski as 'The Unknown Wanderer' linked to 1982 Tylenol poisonings. Boise police identified Dr. Mathew Betkouski as 'The Unknown Wanderer' who may have committed the 1982 Tylenol murders. Originally reported by The Hollywood Reporter.
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.
The one thing
Boise police identified Dr. Mathew Betkouski as 'The Unknown Wanderer' who may have committed the 1982 Tylenol murders.
