CCTV footage, which Jack's family have asked to be released to show the devastating impact of knife crime, shows him trying to fight off the thugs and walking after them as they tried fleeing the scene.
Tragically, he'd suffered a catastrophic internal injury from the knife wound and died in hospital three hours later having suffered significant blood loss.
Eleanor Donoghue, Jack's younger sister, posted a series of pictures of her brother and his family to Twitter in a post that has attracted more than 40,000 likes."I am so sorry this happened to you Jack," she said on Tuesday."Four on 1 and they still couldn't get you down, so they had to pull a knife.
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