Gareth Leach, 28, and Kyle Martin, 22, battered Dean Williamson, 45, at his home after he had stolen the disability aid from their mother, Sara Martin, 50.<br /><br />Jurors heard how the half-brothers kicked and stamped on Mr Williamson outside his house in Rotherham, South Yorks., causing him to lose consciousness.<br /><br />Mr Williamson died in hospital hours after the attack on October 5 last year. He'd suffered facial and chest injuries in the attack.
