David Letterman delivered a fiery rant against CBS and parent company Paramount for cancelling Stephen Colbert’s “Late Show,” calling the decision “gutless” and “pure cowardice” as he labeled his successor a martyr of the network.

David Letterman blasts ‘gutless’ CBS for cancellation of Stephen Colbert and The Late Show - Colbert’s ‘Late Show’ predecessor surmised cancellation was both a financial and political move