A longtime elementary-school band teacher's arrest on sexual abuse charges--and conflicting accounts from police and school officials about who might have known what and when--has left many in working-class Berwyn wondering what the story really is. As Robert Sperlik Jr., 45, remains held without bail in Cook County Jail, many residents are expressing support for him and questioning the charges, which some believe have been exaggerated. "I am skeptical of this," said Michelle Nafziger, 41, who attended Morton West High School in the late 1970s, when Sperlik was a drummer in the school band. "He's being made out to be...