The 1944 Mattoon “Mad Gasser” Panic

Record summary

Residents of Mattoon reported a nocturnal intruder allegedly releasing a sweet-smelling gas into homes, producing symptoms and intense local fear. The episode was investigated as a possible criminal or environmental event, while later historians have discussed suggestion, newspaper amplification, and mass psychogenic illness. It is relevant to UAP comparison because it demonstrates how repeated ambiguous experiences can form a named mystery without a confirmed perpetrator. The case is not an aerial encounter and should be retained as a neighboring anomaly tradition, with medical and sociological explanations considered.