A man who stabbed a London delivery rider in a horrific unprovoked attack has been jailed. CCTV footage released by the Metropolitan Police shows Lewis Livingstone, 19, leap out at the victim, forcing him off his bicycle in Fore Street, Enfield, on 1 July last year. He then unsheathed a large knife and chased the victim away from the bicycle, before mounting it himself and brandishing the knife again. The victim tackled Livingstone to prevent his bicycle from being stolen and as they lay on the floor, Livingstone retrieved his knife and stabbed the victim in the abdomen in front of scores of horrified onlookers. The man screamed for help and sustained further injuries to his hands as he desperately tried to defend himself. He was given first aid at the scene before being taken to hospital where his injuries were assessed as not life-threatening or life-changing. Police arrested Livingstone minutes after the attack and he has since been sentenced to six and a half years in prison. Watch more on Independent TV: https://www.independent.co.uk/tv/editors-picks Click here to subscribe to The Independent: https://bit.ly/Subscribe-to-Independent About The Independent: Making Change Happen. The Independent is the world’s most free-thinking newsbrand, providing global news, commentary and analysis for the independently-minded. Connect with The Independent: Check out our full video catalog: null Videos, daily editorial and more: http://www.theindy.com/ Click here to get the best of The Independent daily: https://www.independent.co.uk/newsletters Like The Independent on Facebook: https://www.fb.com/TheIndependentOnline Follow The Independent on Twitter: https://twitter.com/Independent Follow The Independent on Instagram: https://www.instagram.com/the.independent Download the iOS & Android app: https://www.independent.co.uk/subscribe/app Help to support truly independent journalism. Every dollar you contribute will directly fund additional special reports and investigations from a free-thinking, award-winning newsroom you can trust - https://www.independent.co.uk/donations Subscribe to Independent Premium for exclusive content & live events: https://bit.ly/2MiOONB