The father of a pregnant North Carolina woman killed while delivering newspapers is going on national television to seek help in the case.

There have been no arrests in the June 2007 death of 22-year-old Jennifer Nielsen. Her father, Kevin Blaine, will appear on "The Steve Wilkos Show" on Monday to say that he needs public help to catch the killer.

Authorities said Nielsen had been delivering USA Today to local stores when she was stabbed in the neck. She was eight months pregnant with her third child when she was found dead behind a Raleigh convenience store.

The newspaper published a full-page ad in 2007 detailing the incident, including a possible witness sketch provided by authorities.

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