[Edward Nygma, Jim Gordon, and Harvey Bullock investigate the liquid nitrogen that could've killed Officer Holt]
Edward Nygma : Interesting. It took nearly five seconds to freeze this rose in liquid nitrogen.
James Gordon : So?
Edward Nygma : Well, so, it would take a human body significantly longer, depending on mass and body fat, of course.
Harvey Bullock : Well, why would a cop stand around for hours, waiting to get frozen?
Edward Nygma : She wouldn't. Which means your suspect wasn't using liquid nitrogen. He was using super-cooled liquid helium. It's one of the most effective substances in the world for rapid temperature reduction.
[Harvey Bullock makes fun of Edward Nygma by calling him a dummy]
Edward Nygma : [Nygma in a low tone] I don't like being called names, detective.
James Gordon : Easy, Ed. I'm sure Harvey was just being colorful.
Harvey Bullock : [Bullock chuckles] Yeah. Yeah. I was just being colorful, Ed. I'm sorry.
[Harvey Bullock tells Jim Gordon the good news and the bad news]
Harvey Bullock : Got some good news and bad news.
James Gordon : Good news.
Harvey Bullock : Nygma did some digging, found one company in all of Gotham that makes liquid helium. Wayne Enterprises.
James Gordon : That's the good news?
Harvey Bullock : It's not, but I thought 'bad news and more bad news' didn't have the same ring.
[Jim Gordon and Harvey Bullock try and pronounce the last name of Nora Fries]
James Gordon : 'Frees.' Nora Fries. His wife, maybe?
Harvey Bullock : Yeah, maybe, but it's 'Fries.'
James Gordon : What do you mean?
Harvey Bullock : It's pronounced 'Fries.'
James Gordon : How do you know?
Harvey Bullock : I'm really good with names.