Les Goodman was the scapegoat in “the monsters are due on maple street.” He was used as a scapegoat because he was an odd one. A shadow passed over, accompanied by a roar and flash of light, and made the power go off; this includes the cars, stoves, lamps, and phones.
When all the community members gathered to discuss the happening and make speculations, Les paid no attention to it and went on with his life. Making matters worse, everyone noticed, later on, they found out that his car came on, making them think he is the alien.
During the discussion, someone pointed out that Les looks up to the sky in the night as if he is waiting or communicating with someone. Everyone was looking for somebody in the community to use as a scapegoat or point to as the alien.