The day after and a city changed forever. As Bostonians absorb the shock of yesterday’s horrific events, family members are grieving the loss of Martin Richard, an 8-year-old boy from Dorchester – 29-year Krystle Campbell of Medford – and a grad student at Boston University. All three were killed by the twin bombs that caused massive carnage at the finish line of yesterday’s Boston marathon. We’ll have more about the global investigation now unfolding in just a moment – but first, those who went to the Back Bay today found a crime scene still frozen in a moment of terror.