David Letterman: We’re not going to open a newspaper one day and read about you being eaten by a bear, are we?
Sam Egli (bush pilot): I think the only reason that Treadwell lasted as long in the game as he did, was that the bears probably thought there was something wrong with him, like he was mentally retarded or something.
American Murder: Gabby Petito might make a grisly third.
2005 - 2007 - 2025
I read that the edit of Grizzly Man that aired on The Discovery Channel included the Letterman interview. What I saw on Kanopy did not (and I read that the DVD release also omitted that). I saw a clip on YouTube of Letterman asking him that question, though.
Ah. Letterman was at the top of the IMDB quotes section, found while looking up the pilot quote. 
Watched The Edge (written by Mamet with Hopkins and Baldwin) several times. 
Oh, yeah. I like Mamet’s stuff, too. Ronin is one of my favorites, even though he didn’t direct and was credited under a pseudonym.