Mobile phone records showed Altuntas [the driver] appeared to be in the Amersham area for duration of his restaurant being open, from 8am-10pm. He returned home at around midnight and made a further call at about 1.30am.
Altuntas then went to a friend's house in Highbury at 3am. Records showed he withdrew cash in Smithfield, London, at 4.12am. Phone records traced him going back to Amersham, where he made a call at 6.16am, less than half an hour after the fatal smash. Altuntas had had a “grossly inadequate amount of quality sleep in the 24 hour period before the collision”, Mr Barry said.“This lack of sleep no doubt contributed significantly to what was, in any event, a catastrophic lack of concentration,” he told the court.