The theme of "The Monsters are Due on Maple Street", a teleplay by Rod Serling, is that you should not be quick to blame others. because you can be jumping to the wrong conclusions based on fear or unreliable sources. On page 13, Tommy thought Pete Van Horn was a monster. This shows that the characters jumped to conclusions, because they did not completely know if it was a monster or not instead they listened to Tommy. In conclusion the resident's assumptions lead to Pete van Horn's death.
Is it Charlie?
It's not me it's Steve!
It's a normal day on Maple Street until people hear a sound above them and wonder what it was. It caused every electronic device or things that run on gas go out.
The characters believe a kid named Tommy who tells them that in a comic book there were aliens in this exact situation, and they try to figure out who the aliens are on Maple Street.
The characters start accusing each other of being the "monster ".
The characters sent Pete Van Horn to check and see if the next street over was having the same issues. He came back when it was dark and the characters thought he was a monster and Charlie shot and killed him.
The characters get scared, angry, and mean and start getting weapons and throwing things.
At the end people are controlling the strange things happening in Maple Street and letting the characters torture themselves by their own thoughts and accusations.