Dionisio Llanca abduction
A truck driver changing a tyre near Bahía Blanca said a light paralysed him and two men and a woman examined him.
1973 CE · -38.72, -62.27 · status: account
The account
Dionisio Llanca was admitted to Bahía Blanca's municipal hospital on 30 October 1973, saying that on the night of 27 October he had been frozen by an intense light and taken for some kind of medical test by three human-looking beings, waking later with gaps in his memory. He said he came to hours later about 9 km away. Researcher Fabio Zerpa investigated and published the case.
The sceptical view
The case rests on one witness and has no physical evidence.
The researched reading
A truck driver with amnesia told an abduction story under hypnosis. A medical or psychological episode explains it best.
| Explanation | Weight | Why |
|---|---|---|
| Perception, memory or mind | 50% | Amnesia and confusion after a roadside episode fit a seizure, head injury or dissociative state; the abduction details grew under hypnosis by Fabio Zerpa. |
| A hoax or fabrication | 15% | A single witness with no physical evidence; publicity followed quickly. |
| Genuinely anomalous | 12% | Hospital records confirm his distress and memory gaps, but nothing else. |
| Undetermined | 11% | The share the reading had given to fabrication on doubt rather than evidence: the record does not settle it either way. |
| Something known, misidentified | 4% | A truck’s lights or a passing vehicle could have startled him. |
| A poorly understood natural phenomenon | 4% | A luminous phenomenon could explain the light. |
| A known natural phenomenon | 2% | No natural phenomenon fits. |
| Secret human technology | 2% | No programme fits. |
Official position: No official investigation; doctors at Bahía Blanca hospital examined him.