Boston Marathon bombing anniversary

People pause Tuesday, April 15, as the American flag is raised at the finish line of the Boston Marathon, where two homemade bombs went off one year ago. It was the deadliest terrorist attack in the United States since 9/11.

People pause Tuesday, April 15, as the American flag is raised at the finish line of the Boston Marathon, where two homemade bombs went off one year ago. It was the deadliest terrorist attack in the United States since 9/11.