In the film: After discovering that his neighbour Kurt Dussander was a war criminal, Todd blackmails him. When Dussander finds himself in the hospital due to a heart attack and is recognized by a fellow patient, who’s family he killed in the gas chambers, he blows into his IV and induces a fatal stroke. Todd, on the other hand, denies everything and accuses the school guidance counsellor of being a pedophile after he get suspicious.

In the book: Todd’s more of a homicidal maniac in the book, and after Dussander dies, Todd kills the guidance counsellor and embarks on a shooting spree that ends in his death.