ABC NEWS BREAKING COVERAGE: Boston Marathon Explosion

ABC NEWS BREAKING COVERAGE: Boston Marathon Explosion: Diane Sawyer and George Stephanopoulos Anchoring Special Report Terry Moran to Anchor “Nightline” From Boston Tonight Diane Sawyer and George Stephanopoulos are currently anchoring an ABC News special report to the ABC Television Network.  ABC News producer Kendall Heath, who was on the scene at...