Looks like David Letterman, the host of The Late Show, unknowingly made a sex tape.  Turns out David and a female co-worker were caught in the act by surveillance cameras at the studio.  A source states,

If the tape makes its way into the criminal case, it’ll explode his marriage to smithereens.

It’s one thing for him to have publicly admitted to having had sexual relations with some women staff.  It’s another to see him in the throes of passion with one of those women.

Dave apparently didn’t know the location of the security cameras at his Late Show studio.

The tape might be used against CBS News producer, Robert Halderman, who is being charged with extortion.