In a tragedy none have struggled to comprehend, a group of 12 schoolchildren on a whale-watching trip died in a perfectly logical manner Tuesday when their boat capsized one hour into its voyage. 'How something like this could have happenedit's completely imaginable,' said Coast Guard captain Don Broyard, addressing a group of reporters who were immediately able to make sense of the terrible disaster. 'The way the unstable boat overturned, the powerlessness of the small children to fight against the current, the quick flooding of water into their lungsthe whole thing is so well within reason.' Capt. Broyard added that the state coroner would be more than happy to give parents still uncertain of how the tragedy happened a detailed, step-by-step explanation of every fatal injury. 