By Zahra Khaliq A devastated wife has recalled the moment she briefly let go of her husband’s hand to adjust her hood – before he was suddenly killed by a drunk driver. Robert Palmer, 77, was in good health for his age when he and wife Margaret were walking to their car after a routine hospital appointment last year. As they strolled, Margaret was clutching Robert’s arm. She momentarily let go to put her hood up, but within seconds, she would come to learn that her husband of 59 years had been hit by a drunk driver. Margaret recalls hearing an almighty bang, before she saw a figure ‘flying thr…