That's definitely a new shot. His beard has never been that shaggy before. That kind of begs the question: are they really going to shoot the flashback with the beard? How do they plan on explaining that? OR - OR is it possible that we actually get a shot of Grissom in his office at the school, because she sent the package back to him or wrote him a letter in response? Either way... I dunno. It's a new shot for sure. They could've also just taken a shot from 7x15