Robert Halderman is a producer on 48 Hours. But that's not why he's in the news.

The moron tried to extort $2 million from David Letterman, blackmailing the talk show host with proof that Dave had an affair with Halderman's then-girlfriend, Stephanie Birkitt.

Turns out, Halderman - who also goes by Joe Halderman - owed a lot of money in child support. He was arrested for his lame, failed attempt.