The person says Robert "Joe" Halderman will plead guilty Tuesday afternoon to attempted grand larceny in exchange for a six-month jail term. The person spoke on condition of anonymity because Halderman's court appearance hadn't happened yet.
Halderman is accused of demanding $2 million to keep quiet about Letterman's love life. The case spurred the late-night TV icon to tell viewers last fall he'd had affairs with women on his staff.
The 52-year-old Halderman is a producer for CBS' "48 Hours Mystery."