Police seek information about Manchester attacker's suitcase

British police released a picture of Manchester bomber Salman Abedi on Monday that showed him wheeling a blue suitcase on the day of the suicide attack last week, asking the public to come forward with information as their investigation continues.Abedi killed 22 people in a suicide bombing at a concert by U.S singer Ariana Grande last Monday, in the deadliest militant attack in Britain for 12 years."We continue to track the final movements of Salman Abedi and are particularly interested in his w