A schizophrenic who pushed the 91-year-old former boss of Eurotunnel onto Tube tracks last year had taken £600 worth of crack cocaine the day before the attack.
A court heard Paul Crossley shoved Sir Robert Malpas onto the rails at Marble Arch in April last year, just minutes after attacking another man at Tottenham Court Road.
Sir Robert was saved by a bystander, who leapt from the platform to pull him out of danger just one minute before the next train was due.
Good Samaritan Riyad El Hussani was burned by the electrified rail in the process.
Sir Robert suffered a broken pelvis and a cut to the head which required 12 stitches.
Prosecutor Benjamin Aina QC said Crossley was supposed to be taking medication for his schizophrenia “but had not taken any medication on that day.”
“Mr Crossley said when he was on the platform he began to hear voices and was getting paranoid,” he said.
Crossley denied two counts of attempted murder, and had told jurors he picked his victims at random and did not mean to kill them.
His defence was rejected, and he was found guilty on both charges at the Old Bailey in October last year.
Crossley’s sentencing hearing will continue tomorrow and is due to conclude on Monday.
He is currently being held at a psychiatric facility in east London.