the man who attempted to blackmail david letterman. former cbs news producer robert halderman admitted he tried to extort millions from "the late show" host. letterman told viewers about the plot last october while confessing to affairs with female staffers. as for mr. haldeman, his storytelling ended today. our correspondent is rehema ellis. >> reporter: robert haldeman, a longtime journalist at cbs told the court he was remorseful for attempting to blackmail the talk show host about his relationship with stephanie burkett, letterman's employee and haldeman's former live-in girlfriend. this was a thinly veiled threat to ruin mr. letterman if he did not pay me a lot of money. he was sentenced to six months in jail, five years probation and 1,000 hours of community service. >> i apologize to mr. letterman, his family, to stephanie burkett, to her family and certainly my friends and family.