Blade thug slashed teen girl's face with 'Glasgow smile' in string of vicious attacks Malcolm Cumlin, 31, was sentenced to eight years in prison on Friday for a series of vicious knife attacks on complete strangers in 2019, two of whom were teenagers Malcolm Cumlin, 31, has been jailed for eight years over a string of vicious knife attacks (Image: Spindrift) The Daily Star's FREE newsletter is spectacular! Sign up today for the best stories straight to your inboxInvalid EmailSomething went wrong, please try again later. Sign up today! When you subscribe we will use the information you provide to send you these newsletters. Sometimes they’ll include recommendations for other related newsletters or services we offer. OurPrivacy Noticeexplains more about how we use your data, and your rights. You can unsubscribe at any time.