Question: With what weapon did did the subject of Summer of Sam perpetuate his murders?
Sentence (from "Summer of Sam"): Although the killer David Berkowitz, his murders, and the investigation are shown in the film, the main focus is on two young men from the neighborhood: Vinny (John Leguizamo), whose marriage is faltering due to his cheating, and Ritchie (Adrien Brody), Vinny's childhood friend who has embraced punk fashion and music.
Relevant evidence: Yes