The chilling CCTV video shows balaclava-clad Joshua Giles, 21, of Morecambe and Levi McCandlish, 27, of Swinton target their victim with an improvised firearm, known as a 'slam gun.'br br The victim, in his 20s, leapt over a garden fence but could not escape the thugs, who blasted him in the face from close range with the weapon.br br The pair have been sentenced for a total of almost 30 years in prison for shooting the victim.