A security camera shows the moment Lee Pomeroy was stabbed 18 times in 25 seconds, on a train from Guildford to London in January.
The Old Bailey sat in silence during the graphic clip of the “quick and frenzied” attack on a train from Guildford to Waterloo.
The 51-year-old was stabbed by fellow passenger Darren Pencille on 4 January.
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