Upon entering the house, the first thing Don could hear was the sound of the television playing the news, which, of course, was talking about the massacre at the church.
From what he could hear, they were basically recycling the same story, likely because the police hadn't provided the public with much information yet—such as how the victims were killed.
Most news stations were crafty enough to tell the story in a way that implied certain things to draw the viewers' attention, which was the whole reason it was being described as a massacre.
Despite the police's official statement only mentioning that multiple bodies were discovered on the scene and investigations were underway, the media spun the tale for drama.