Everyone who lives on Maple Street is in front of Les Goodman's house blaming him. They are blaming him because Tommy made a rumor that there were aliens that looked like humans and tried to kill real humans. They all thought that Les was an alien because his started by itself then went off. He tried to convince them he was not an alien, but no one believed him. I think that because they were blaming each other something will end up going wrong.
In this scene everyone starts turning on Steve. Charlie claims that Steve works on this radio set. He also said that no one has seen it before (which is true). Charlie also says that Steve talks to people from space, tring to make it seem that he it talking to his home planet. So then everyone starts believing that Steve is the alien. Because everyone on Maple Street is blaming each other they are making each other their enemies.
Maple Street is always turning on each other. There is always blaming and fighting going on between them. Then there was a dark figure coming towards them. Charlie got so scared, he shot the figure. Then they all ran to see who it was. They didn't realized that the dark figure was actually Pete! Pete just came to the next street to see if the power was off. The neighbors were blaming each other, they got too scared, they did not think, because of this, they accidentally killed Pete.