Shopkeeper killer books life sentence

A masked robber described as a ‘one man crime wave’ is facing a life sentence for stabbing a shopkeeper to death. Alex Gunn, 31, crept up on 54-year-old Ravi Katharkamar from behind as he set out the Sunday newspapers at Marsh Food and Wine in Pinner, northwest London, on 24 March. CCTV footage from the shop shows the killer knifing Mr Katharkamar and wrenching the cash till from his hands. Gunn stabbed Mr Katharkamar in the heart and fled in…