can anyone solve this riddle??
In the beginning of the school year, a student is murdered. there are 5 suspects, the chef, the janitor, the math teacher, the principle, and a student named bobby.
The chef said he was busily cooking when it happened, the janitor was cleaning up a boy's throw up in a class, the math teacher was grading papers from yesterday, the principle was in the auditorium speaking to students, and the student said he was in the auditorium listening to the principle. Who is lying??