The professor and the puzzle

"Bess, George, and I were so excited to attend Oracle College's Greek Gala. All the guests dress up as a Greek god or goddess. But this year's party ended in disaster when a student fell from the balcony in the middle of his speech! Thankfully, he was rushed to the hospital and is going to be okay. Still, something told me this was more than a case of bad timing, so I checked out the balcony's railing. And it was clear that someone had tampered w...