Premium Content Subscriber only A JUDGE has warned a convicted armed robber he needs to sort himself out before he “wastes” the rest of his life in jail. Nash Steven Cobb, 32, earlier this year pleaded guilty to robbing a man while armed with an offensive weapon. He appeared via video link on Monday in the Lismore District Court for sentencing. Cobb had used a machete to rob a service station in South Murwillumbah in March 2019. The incident, which took place at a service station on Tweed Valley Way in South Murwillumbah, involved the theft of money and cigarettes to the value of more than $5900, the court heard.