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The Mad Gasser of Mattoon
In 1944, residents reported a prowler spraying poison gas through windows. Victims felt paralyzed and nauseous. Police found nothing. Mass hysteria? Or was there really a mad gasser loose in Illinois?
August - September 1944
Mattoon, Illinois, USA
100+ witnesses
The Mad Gasser of Mattoon was a mysterious figure blamed for a wave of gas attacks in Illinois during 1944. Whether real criminal or mass hysteria, the case remains debated.
The Attacks
According to documented accounts:
Starting August 31, 1944:
- Residents reported someone spraying gas through windows
- Victims experienced paralysis, nausea, and dizziness
- A sweet, flower-like smell was noted
- Over two weeks, dozens reported attacks
- The town was in panic
Typical Report
A common account:
- Victim awakens to a strange sweet smell
- Paralysis of legs or entire body
- Burning sensation in throat or lips
- Sometimes sees a shadowy figure
- Symptoms fade within hours
The Descriptions
Witnesses described:
- A tall, thin figure in dark clothes
- Sometimes wearing a tight cap
- Seen fleeing the scene
- Possibly carrying a spray device
- Always escaped
Police Response
Authorities:
- Patrolled extensively
- Found no evidence of gas
- Made no arrests
- Eventually dismissed reports as hysteria
- Some officers were reportedly gassed themselves
Mass Hysteria Theory
The favored explanation:
- Initial report triggered copycat claims
- Fear spread through the community
- Physical symptoms can be psychosomatic
- War-time anxiety contributed
- Media coverage amplified panic
Evidence Against Hysteria
Some argue the gasser was real:
- Physical evidence (cloth with odor) was found
- Symptoms were consistent
- Some victims had no prior knowledge of other attacks
- A similar attacker operated in Virginia (1933-34)
The Virginia Connection
Before Mattoon:
- A “Mad Gasser of Botetourt” operated in Virginia
- Similar attacks in 1933-34
- Same symptoms reported
- Also never caught
What Was the Gas?
Proposed substances:
- Chloroform
- Ether
- Chloropicrin
- Carbon tetrachloride
- If real, it was likely homemade
The End
The attacks stopped:
- After police and media declared it hysteria
- No arrests were made
- The gasser, if real, was never identified
- The town moved on
Cultural Impact
The case:
- Is studied in psychology courses
- Represents mass hysteria potential
- Remains genuinely ambiguous
- Influenced later “phantom attacker” theories