Career criminal threatens to blow pensioner’s head off – his lawyer blames ADHD

A career criminal who has spent most of his adult life in prison threatened to blow a pensioner’s head off in a terrifying post office raid, a court heard. Peter Dixon, 44, pushed frail customer John Sheekey to the floor, kicked him and told staff he would kill the 78-year-old if he did not hand over cash. Later the same day he grabbed £300,000 worth of gems from Richard Ogden Jewellers near Piccadilly Circus. Dixon escaped in a black cab…