SESAME STREET—Tragedy struck this peaceful, educational New York neighborhood Saturday when a horrible, scary monster dismembered and devoured television star Grover, despite the Muppet's continuous urging to beginning reader Brian Wilcox, 6, "not to turn the page." "Apparently, this warped, sadistic child was intent on seeing Grover attacked and killed," said Police Sgt. William Rudin at the crime scene. "Nothing else could explain his repeated insistence on ignoring lovable, furry old Grover's frantic and explicit warnings on virtually every page." Witnesses say that as Grover was viciously savaged and eaten by the monster on the last page, he used his final words to denounce Wilcox for his cruelty. The NYPD has ruled out the possibility that Wilcox was aided by an accomplice, telling reporters, "Brian read this book all by himself."