Locomotive driver francisco jose garzon voluntarily appeared in court at the scene of the accident in santiago de compostela on wednesday to reveal the identity of the caller, spanish media reported, citing the high court of galicia.
79 people died in the accident a week ago. 13 injured still in critical condition in hospital on wednesday, according to official reports. Garzon admitted to a "lapse" during questioning by the investigating judge on sunday, but did not mention the telephone conversation. The call only came to light on tuesday during the analysis of the black box. 52-year-old garzon faces 79 counts of involuntary manslaughter.