The widow of a man stabbed to death on a train wept as footage showed the moment he was knifed 18 times during a “relentless” attack.
Darren Pencille, 36, allegedly killed 51-year-old Lee Pomeroy in a “savage” onslaught on board the Guildford to London Waterloo train on Jan 4.
Mr Pomeroy, who died on the eve of his 52nd birthday, was on his way to the capital with his 14-year-old son for a day out.
The boy witnessed the attack.
The Old Bailey has heard how an argument broke out after Mr Pencille made a “rather snide” remark as he jostled past the Pomeroys moments after getting on the train.
According to one account he said: “Ignorance is bliss.”
As the father remonstrated with him, Mr Pencille whipped a knife out of his jacket pocket and stabbed Mr Pomeroy in the neck, jurors were told.