Question: Has there ever been any explanation as to why Freddy was killing children?
Question: What were other children singing/chanting when young Freddy used hammer to kill the hamster?
Answer: "Son of a hundred maniacs." Freddy was conceived when his mother, Amanda, was accidentally locked in a ward of violent mental patients and gang raped.
Answer: In the book version of the first three movies, he took a saying from his abusive foster father: "Children are useless." He made it "Children are better off dead." He also killed one trying to rob him and felt a rush of adrenaline from it that he didn't want to lose, so he got addicted to killing.
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