By Ann Cusack A mother whose only son was killed with a single punch has spoken of her heartbreak, revealing she still changes his bed in the desperate hope of him coming home again. Jake Rainton was just 23 when he wasfatally punched in a completely unprovoked attack by stranger, Ryan Patient. Patient, 25, of Rotherham, was convicted of manslaughter and jailed for 10 years last month. Horse-mad Jake was carried to his funeral in a horse and carriage and laid to rest with flowers in the shape of his favourite pony. Mum-of-two Dawn McGurty, 52, says: “Jake was a lovely boy, kind and caring and …