Video captured the sickening moment a thug jumped from his seat and attacked another passenger with a broken Buckfast bottle.

Thomas Craig, 48, was filmed jumping out of his seat aboard the carriage between Glasgow Queen Street and Perth on February 16 last year.

He can be seen grimacing and clutching the bottle of Buckfast in his right hand before pouncing on his victim.

CCTV footage then showed the moment he changed out of his blood-soaked jumper – only to be arrested at the next stop.

Craig, of Walton Street in East Renfrewshire, was found guilty of attempted murder and serious assault on November 28 following a four-day trial at Glasgow High Court.

The court heard how he had been intoxicated on the train and began speaking to other passengers who were sitting across the aisle from him.

Within 10 minutes of the conversation he hurled an insult at a victim before suddenly unleashing the attack, jumping from his seat and hitting the victim twice over the head.

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Thomas Craig, 48, was filmed jumping out of his seat aboard the carriage between Glasgow Queen Street and Perth on February 16 last year

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He can be seen grimacing and clutching the bottle of Buckfast in his right hand before pouncing on his victim

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CCTV footage then showed the moment he changed out of his blood-soaked jumper – only to be arrested at the next stop

The victim ran away through the carriage but Craig pursued him and continued to relentlessly striking him with the bottle until it smashes, with the Scotsman left holding on to its broken neck.

The victim’s friend attempted to intervene but was himself attacked when Craig turned and punched him seven times before twice thrusting the broken neck of the glass bottle into his chest.

Craig then returned to his seat, throwing the neck of the bottle towards where the pair had been sitting. He then grabbed one of the victims’ phones and pocketed it.

He walked down the train before taking off his blood-soaked jumper, replacing it with a clean hoodie from his belongings.

Police and paramedics met the train at Larbert railway station where both victims were treated for their injuries before being rushed to hospital and Craig was arrested on board the vehicle by officers.

Police said the injuries to the second victim were so severe he was placed into intensive care, having suffered a stab wound close to his heart, a collapsed lung, and a severed artery that resulted in him losing around 15 per cent of his blood.

BTP Detective Inspector Marc Francey said: ‘Craig acted in a truly despicable manner, violently and relentlessly attacking two men over a minor disagreement and causing countless passengers on the train to panic.

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What more should be done to keep violent offenders like this off our trains and protect innocent passengers?

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Craig, of Walton Street in East Renfrewshire, was found guilty of Attempted Murder and Serious Assault on November 28 following a four-day trial at Glasgow High Court

‘His indiscriminate and thuggish actions could have resulted in far more severe consequences, both for his victims and for himself.

‘It is thanks only to luck and to the lifesaving work of the paramedics that Craig hasn’t been found guilty of something far worse.

‘I hope this verdict brings a measure of closure to the victims after enduring such a brutal attack.

‘Violence on the railway is utterly unacceptable, and we will relentlessly pursue offenders like Craig to ensure they face justice.’